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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0315be3209bc321d92281524c0e95be6ed9b1d89e2196d916b93260b5ef335a9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/090fb7d6-462f-4ddf-aac5-e700e93902a0.json and https://artists.proofprofile.net/proofs/artist/090fb7d6-462f-4ddf-aac5-e700e93902a0.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0110f5cc7a4e6bdcc8100e90568236786b7dd6a6e892c402ff05a9c73c0a6b2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/NLB601700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e2a3294f3c3866dc42bea7709632f81922c8abeed41125b340d9f75ecbfaca. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLB601700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad78ccafe8798ae4fcc38b218c47c6ac9bce07f9c234afe7738c8f455239fbd. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/NLB601700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6dfe797f8a1329eb1599a70bf1b3005490a698920d60ea43c7df7d0bea76dc. 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/NLB601700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f2222de3635b3951d2377f005a5a67324439dbcaf55612f8762d9188b39b8c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLB601800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b37aa4fedd727e5ec129412bbd6e7f6941e03386525d3eb08038b8bee303ab. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLB601800409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6250ff927f865479d77e87e7741131e857b50f2e6825f36f479c62863b5bb1. 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/NLB601800411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab62395b8a01def6a4d7529e3e6d9af4da65acc2e8695fc71e12f0fb0d02a5d7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLB601900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6975afec10059a2b2077894733bc6e33cb2b05914927b2fccecacde0e724ef6e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLB601900213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8d270a3ba117e6803830311bfd50e3534b0458ed8282ac8f9afd1e83cfc40b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLB602000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9d5ccae95fe3433f3218591b7b4f7b0c69159bc244b6e35006c4c393b1aa65. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLB601900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb068ce41608413243c774ef3dac0e8c4198f2814891e4ded61adb9ae54c5eaf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:18:24Z), 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/NLB602000189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05773d3d39b641b72eb3d8b7bb251665fcda26981a0297c18a3591f4dc7e2e82. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:17:10Z), 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/GBAYC2100796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a8b92b877fdb35f7de99d8a5b627674f764e9b6fa2dfb7d2f9f52f319eb307. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/GBAYC2100802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58db1c8f74820f4516706748055ae55e25cc781cd86ad42ec7b4c2ec07380e7a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:29:22Z), 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/GBAYC2100805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270da3eeedee4e8d4d7d2467ab6a07a85375dfba573bf6c562ad35bcc2205031. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/GBAYC2100806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3f72ff62a4452832cbed3fd1944b4cbca5c198d0cf88efd562a9546537f5db. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBAYC2100807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44876397c3abd0b66f2193135cddb264281ee11abaa5d8df87dbc30c10fd3bf. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBAYC2100808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa264506d209982e37683ac3d87909b4ddd27039a035198a27bc3735d2a5c326. 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/GBAYC2200706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11ef3e106caed97d7fba00429b1426d3a90788fd5e9d84d0e80c2ae98624507. 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/GBAYC2200707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1653dbb61215cc83c037376416110282faf8589a9452468e911bf540012e743e. 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/GBAYC2200708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb410b04590b125ac1024f133c7c470042ab00c7d3a144aabba5034df08832b7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBAYC2203324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f13ffe215b67e9290608e5b2bfa08d6214f7410ca5b0624a2403be7fd6745f7. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/GBAYC2203326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd908a187624c8932a074511f6912f20bb982563b5a1143139ac863a587619d45. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:57Z), 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/GBAYC2203330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddb392d7d2566cd07c7dbfbc9a9b081037e86959a16dfc0240c0e3173073320. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:04:39Z), 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/GBAYC2203331.
The Young Weaver (Renaissance Piano Version)
Poëta Minora (Renaissance Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ef4d504beb33d15d0842d5a2a3ceb955a25c572add6d41d168182459553f70. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBAYC2302283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193a7744c45cc98b851b6942fca168f47d9661b1c7d630007bc5d885646a80d5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBPFW2400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe92b894a8f1ac07b589ca412c0f4dcf1f3a3fdfb14c80a2b4ed1af3782211. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBPFW2400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe92b894a8f1ac07b589ca412c0f4dcf1f3a3fdfb14c80a2b4ed1af3782211. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBPFW2400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636123b58999fa37fece5a29b9c358980437bd2230d7efd2899c8f072ad8aef6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBPFW2400297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24fd25300ca4fc7328ac6396ac87868f779ef5e1cbbc61c1b949113d427fdf0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBPFW2400300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7b3fe657501e944cee2cce45d9936fdac1aa803a47d8d5cde6496bfc2e3df6. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBAYC2302280.