1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c18f9ce244c17f00f1c26fd049092e94095c27e42dd2c0584c3c524e9186fb1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05f87a1c-c092-460a-89cf-5980669e767e.json and https://artists.proofprofile.net/proofs/artist/05f87a1c-c092-460a-89cf-5980669e767e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9503a9e455f9db639156832d26d39d9cae5ede6611182084cb71671fb3da298. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82155485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf049222b092f2351dc1d04335e9701c33f202e3bb66587ddf769e30056219348. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82155486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dd2d860af121b67d3a78a254b9e918c7bd584764d3398e5cfac71fa03f9458. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1417688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da4afbe7b86ebbee03abf04ef8a3806bd3673e5837dfb52e6a12d89b5b7b30f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f13ede663a692bd4c67b21f34f28a2d455bd23af794d62fd7871fdec1287d1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79eab9fbce3ba9a34bed318ab0240a297af7327166dc9de85148038192892a26. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bf5cec924b08f93d2e9eec1fd75b2ff40f4c1231b0242800e18d50caae6acc. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98226694ce88cd5e77ad524bdb364572da636a642ad7dcc971df4d5141a5f6eb. Chain 2 (Bitcoin): anchored in block 957957 (2026-07-14T05:10:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a6eda8364657456827d7585619d120435b6f2208fb971c22879ed232403bcc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1b3340f6cffc0696ad00269b9eb457e7db437f736c52a1305fd8a757dc6be5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e802f3615f4c26ba270d15f8e306ef349db376c059c06cd8ef49291f02a6f3a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c83055f7a05ae8fa7c4f91d6c49576c830bfd79922e426c48050f34451da0c. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53eda905b5b28a2a9dc0b5af2d3eb531f6ef163b4b67f0cc3cab3e684544aadb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd989dcb47113a82687ff09f3540073c963434c77d4a8c7175134f95d3e943b. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543948.
Maryna Buksha Plays Raphaël Novarina [Piano Works I]
Maryna Buksha Plays Raphaël Novarina (Piano Works II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a4f13113d8dbdf4c1de472171327ac86998ee89a052c782472f659e2608ae7. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2526481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacacd4668c179e3363004d1a08fac298dd508ff77c52567d669945026cb8c154. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2526487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4617f6b2d858d5a6ccec406c74030d070e8cb920dda4fe63696c1b4440d46105. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2526495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398cc3cfaab698932abf8e49814e2a11b06ca195670dc1e480199bb5c12a2909. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2526507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d921a68730bbd580309b39c2824d7333463697f8f007ec77b9fdd2e437b21. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2526520.
Duos for Violin and Piano: Bozhik Duo Plays Raphaël Novarina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da194906316ac24ae128f6ff761d4e46b2df5cc05a00c71058f94cc4ab247ec. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJP2527206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ef8e6bf21217e323fa44efd0a94d01f0589b0323cfd9c31c1ca2f7ea662db4. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa682dfa50aaf456b2f76798f7366046d64a82243589df2bca3d850e4eaf26fa8. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb7d6d563ce0f72d3cd999834c8461ccee2415ec07219a5b9e9ab4699b5ea78. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b34e8edb891d2b515f1dd6b09f6ff0f4f76fbebb07e2cfb72bdeab47b93311e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJP2527309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d79ff426e3ff2c5467e6d48f9b74bce3d5971266e3950d4c8359419c39dfb1f. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00651a602d12c8253bc6a2eaea2b60c173802f44d63bf007b4906141840b232f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0260623b202b073774598f913aefe8b8c17e26b19f07a527c315119179e82ce8. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17eff24d65ac465f47ec7e05059f1a1212be5a29f7bfdeb596434e27e6ecf17. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7368129501866809052776644ec86ea9e64634174671dd2b6df143506224e753. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9b1bf409a49458f20806ea93a0a66a72a8c558de75797a78cd5db338515c22. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcb06be42b6bb50f9466e94cb7407a3a7d9833914f305e181ed4fceed8ae979. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2b4fd984de9d67accc1d9f293c3b731d0c0013ac255832f59b02da1d1deb2a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJO2527856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38e6a7678e51feb726df8330c20bd407e9caaf2598f240df0b95994789e0805. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJS2530494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9016a549eaf0c806e97ccb8ae0d4faf901f712afa5a0a4d8b0358226601196. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJS2530503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f69adb8876f4494cee23159dc8445ff31545b596b3312a0d0e83f587449a4f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJT2530508.
Vladimir Gapontsev Plays Raphaël Novarina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde1b7c8355cf51e10cbcefa4588f14a090110e8a918e7899e3e9ad783e81449. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJT2582421.
Notre envol 2 (for Solo Classical Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c769f8b6b0eb7b69dd0755dd71d3ac9f5a9b176fc633c1cd836e33c5872c1c2. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJT2582457.
Funeral March No. 1 (Marc-Henri Lamande Plays Raphaël Novarina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fdd76ea72abaf221616ee7f69dde2332f03f8d8848791154d219207d30d213. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Y2562974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69192b145b9ede531bd910cfa1445238114be257de8aebaa326824df84fd8be3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Y2562995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86e2e222af16e26ad5700ca877df8d47de472f88dc9ecac7f1790563c32637b. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7bb84a0bb0b152c1d35f5089f8257145b9438193fedd7e5c7e5a650f310e92. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee22b2f8f59afa8bd45358690c62b6f787a85f2f09db3492458519aa83f16f1a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18d7a6adb042559ae9631168bdfbda9fa85f507b251aa38b132a29a25e94538. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f04add05a1ce20e60ab71dbbc789fa5b332f7366fe154d10e6e207013c7f90. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34fc754c4d98b6bcbd55c14b918070641b4e7d47f75840cfbfeb13def6a9ec0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e94ef1ddca54e61a578ddb3de359aac2ac398cc22e06cb3e7d40b9bbab7ce3a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70687cc893cf61a82aa2dc522b01b6f2d50e70a5ce7c74bfed5c6922be98f5f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f44d34cec6d53acb3c09cf76ad36f2884fd477b5618fe8a83c453cc5e6ab0f. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d6170815213184e63437bf5dbb382d1fa4f942b10282b65900aae8a8ff03a1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08777bb07e41996eeac5d71eac45f87ce238f06985d382ecc42b1837296eaa8. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdca96dd7a43fa49330df1605415a592cbf5a3f9025988e0c4ec5067be9648f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d143ddd4f4690e4d0a61d5c5e4b1332f07803590cc4a2f48ee022c0d82e3cc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a47279e5882a3c8e8b44d1c526b86273cfe27b9ef065d907bc907155624f07. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT65Z2525429.
Piano Music for Studying, Focus, Memory, Work, Brain Power and Concentration for Exams
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7a60602f147b7f44f0ca197c305ecdf64ec5d66846f6ac2e6ca60d37f74c37. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1417685.
Relaxing Soft Piano Music to Sleep and Study, Focus, Memory, Work, Brain Power, Concentration, Meditation, Baby, Yoga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c83055f7a05ae8fa7c4f91d6c49576c830bfd79922e426c48050f34451da0c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V1543944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bde4778e4b259a44f60634b2de0feaf4c111a003a853702367341759432deb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ2089845.