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 0x95a07476edd19423cb7f731c5420dff6af6f39599becb6c2d9a335763dc5e2fb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1926bde7-3835-48e1-8871-f3eabb81ed0a.json and https://artists.proofprofile.net/proofs/artist/1926bde7-3835-48e1-8871-f3eabb81ed0a.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 0x777353bf44ccafd15df007306c5ccc99aeda048277a461e01c95c7c09a054ca8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG2300740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c73aab844de0b7988662bd7da930a9f4632b4a0f6e129e01f47442448ab52a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG2300741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5451328daa2bd54bce0b08d1fa8febd9fe4bbff6c44331f272df99ac036950. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG2300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1452284d1327d2304d622255109822c208594d8038249e18ba9f47d7d973866. 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/DKADG2300742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03019dfb8e0040b7003463b873747a287f420206c16b20825d5cb0072242666e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKADG2300743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d42298adbd5f826451abb9de4ede1f67f7f0aff11a332cc75d207ea306bb88. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG2200652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fbd4cc0dc02f82a43eccb8096bdd21017f1e12b009bd0ef963f8441f202eff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKADG2300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe029697c818be6d7ed244bc19bc0710e7001f21c4a2974a9981138b46e6c2509. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKADG2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52fd62c833ddb2d6445f8931ceeb70a5f48aed0b3edcecea2b280d207923403. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKADG2300744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672f90a4dd88cdd7510df3750b1bf3948280b4ebf9f1053e7fbb5f8b0e7dda60. 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/DKADG2300745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c097191409bf0a1843cd4df2b61b659125d3afaaecff76a4501f921ec98b5b. 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/DKQ272100130.
Live Forever (Marcus.wav x Anthon Edwards x Thøger Dixgaard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba076aacb23dccc9bd1710c04428084396727107b18a271c5c4011e33b62c00b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKQ272100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a34b4355a0c91467391d9d77dea5ba709c127e1205f2db99c9aeae100c2b8a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKQ272100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4581dde3dcdf4cefcbea5f34698de86190fc94fe68cee0020ee0c66107fd0e27. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKQ272100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c00ca30cb731da003988bfb7a29c0b510af15637a26eddfb3b162829d41bc65. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKQ272100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7e927f9d7dfa0896831548e9c2dcb11d3483b546a3a07855f1295659a7f88b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKQ272100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fbd4cc0dc02f82a43eccb8096bdd21017f1e12b009bd0ef963f8441f202eff. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKADG2300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bdb1a86d3ef122aa35aa2b8dc72fd280398d9589ccabb4dad4b505c3fefb26. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG2300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe029697c818be6d7ed244bc19bc0710e7001f21c4a2974a9981138b46e6c2509. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKADG2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230bbd5a9f0282c8208575fdaacb3702fcf4b8204d2528f218a62f93d1a519ca. 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/DKADG2200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd803f756ce900427496e46da3558b47e5ea861aacd4c4550901e3f3cd671733e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKADG2200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168f82511417454cc5e1f8ef786ebe0e3c237eabe330e66a99d24e0b3803239a. 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/DKQ272100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1a9d8996bb823c928a697e75df16aa6f3f2defa28d95f53d2fc7f8c542bc4f. 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/DKQ272000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6224b095e083d63bc2221baf47ddbb5d9b74800fb2fe233589396c38c2e7dca. 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/DKD652000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6617ae3a946a4daf891be34a0967ef5f7c388a0559a3545c751cc113d288d1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKD652000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2209caf4b1cab3b29521a493eaa5e0379131da6b4c811d93766ec31fa20362f2. 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/DKD651900801.