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 0x7f99128622c8a31682317456180cd2ca7666ce8edcc787947b139a94c22b584d. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e75cac5e-f472-480b-be39-4e913deba363.json and https://artists.proofprofile.net/proofs/artist/e75cac5e-f472-480b-be39-4e913deba363.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 0x9c83686e046debdaf07cf77fa6abb26e6783ab6741733c08390901d8baa0ea96. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6P2148845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e259ad2425414b8ce5b8c3ca5f7884b142231fd32bfdafc4a2bdcdf593164d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6P2148846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1069b0074961e7a405a78f47a54847e7bfad958799965ce50f2d89456ad74f6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZK6P2148847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1643a37efb0807f8e69eb96ef335a28391d122bace153545b7b37035e6939733. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6P2148848.
Losing the Way - MIND | MATTER EBM Ritual Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4584759a9823b37ce9929ea692459c7535ae00a91ab58570c7bb27576d5fed. 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/QZK6P2148849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37fe02b8b1a7bd46894a943625ecb8bd6cb8f602dab0bb34aa7f10caf734c2f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZK6P2148850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2b404ef83029266b1f2aa1498e0f4f58eeba0536c370e9730f4b13b177ce94. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLL562301463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75c73bd7932cc51390bcb559cacae48b84da9a436a35b58d89ff8f4dde2fdc4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLL562301465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50183a6d6f2b0b422f3a5ce69bfb9916872f0d1bc6b622f4004dbd2a4a319d37. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLL562301467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476394e410e92870ec7e2fa29635a7a1cfaca0786bae707facf2a4000a32931e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLL562301470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664c5bd1dc6c09a360e68b0bdeebebbeb1953771abaf9d4acea3440ae80c9c27. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLL562301472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda66477b9b74544eba0b2473223aeaa713c1eab27ef08cfb26dba45a85cd916e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLL562301474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f80eb9c5d2825188277d12619cc0b0d1535f2ecf0e1230aee06fed53eb31ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLL562301478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe826d4a6c971280467a13eab16034df46e2da9c533a450dd41415811b76fd7d4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLL562301479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93257246af901236ba2bafa1d7d412c6040267adb03e2c5cebd2bab6b9b44f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEH742043928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e10c114d4ad90763cc96f6fabd662589115bae759cb2153af470541f3912e9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEH742043929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3cfe504666c9819add9e704923d7f3dbbea37ff9c4f8a67a057b339010d8e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEH742043930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3b1af891f4c52586108f2334bbf465ebe3f7b1c5c2e24ab6c9665c12b740d6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEH742043936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6751937bc351aee319734f0cf30b5cd208ea0febf5f238950a8026f31aaf6e6e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX201996752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaecb9e0c5af7da8a745dec7397ba87de259b68af5c2dfe884ad43b8000c3210. 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/FRX201996755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f416e7fa5871d609938122bc12650cdb482d16f0d0bbee3b53f1546144edc2e. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/FRX201996756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d79977a3fb2ee4bd2e1325fbda883a88cf9a1f34db768b3ac55c2d56132feb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEH742000694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7dda35fdd226b73b4e1e19340d2470a096812640bb912aebc4642e82a6a113. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEH742000697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7f8107148fb9a1bb29dd7e73f3c9eaa4bee9f3f2da9f22e3670af01ba5d850. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DEH742000695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7c27a6bd4f4e2720368eb379984165ebb9f53a09db659caf2f1c97fa948a6c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NLCK41068340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d72742cfd7274059f66802c7195cb21a7cd79fb5d4a1f00c7e7aa0d4ec7b4b. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NLCK41068346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ab8e48e268c5666f7750699dc941325d224dcca2f622de5b5a88dcfc933ff0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLCK41068348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75ca5ad50f5f5234137efafed4612cfe3ad61179906033767c5b3f3192e6341. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLCK41068349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7845a71f3719c53fb5045f728d1ae7f5988e3153fc5dd0e8ac975230bb9a0636. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN92279482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ee0b946f07e74878c879baeb216b8ab18a4e02773efe0c3c09067db8267756. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/NLCK41081511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee9d16c5251f4a4bd1fa781d0208c0d3a838d8baa275c3d7922d8a6dbeab352. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NLCK41081512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3fe936a4eca6a3229d7fc76308522419e76414f5607c93f3635bdc6d0cc9dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK41081513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4dba3cfbc260047a8c5ff99ae110bd0e382bb932b369cce4b8dd61300c792a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DEMM42201069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11567f138d12e4814029992b60286df63f3d2d781ad23feb1fe038c78123aa10. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEMM42201071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb338f291569b7de1820e29dcb3f1c1ba53b02fea34f78b6070eca576ea165d4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZHN92279476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75588fb0389522f8fa60742552691f758d74c9a2084cf6c98e5a84aa185a604. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN92279478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cb2e8dee525de438761ae449a34d847b75910e84c3d75effaf3539d97af641. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZKDK2093905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0146f1c7f37a9743af0be7aaaf27eb6a7bffcfe8b13f6fc1acb8b4675e55d63. 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/CH6542132302.