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 0x8c2a18364619ebb1fde3b30f9f33442cd6db0a5a6fc55f1046d7c0a941f58658. 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/f7824a73-a515-4382-b29d-ab52ccd57098.json and https://artists.proofprofile.net/proofs/artist/f7824a73-a515-4382-b29d-ab52ccd57098.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 0x172313c95f8d6c4bf9ae98393ca2283288f56fb04b9e82de3be6fdbebeb0c252. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T18:39:19Z), 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/SEPQA0651419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f935c5a6c1841e24713121441552a2e7802fe69e770d6a0cba8679a759888f5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SEPQA0900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0ee50dbc64c647e19377fca521a2da20099c9a813aaea0a41df1c3ddaa0d52. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/SEBIA0003010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf796fdcf534d9e9d47598d5f5db38278772f333a2ae76c9852421393aeec9261. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEBIA0003020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00a4f0961c1ebd88a148856d6b8ff7cfc96326e91b29db165bf45f8080411be. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEBIA0003040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991ec12638592d53a5a89d8ba566e89048fdf0975326ff7979471d70b0e829bf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEBIA0001031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf93ca2d09089ffb4de904646c8d35fbb674af71be55b4e40ff3cf6089b281a9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEBIA0001021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8428e1645c4bb5fbfc0b45a82153ec5cda61aa900c59f872d710789980776c3c. 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/SEBIA0003050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27c38612592488e0f85fe6f34883350bd5363de805b3755a03cd3d327eb9958. 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/SEBIA0001010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6680eb08f45e04cb920fb340b2d4e2bead95ad0cacdfafea28abca51b925c4a4. 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/SEBIA0003070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36171b8ee0339ea3891489b75ce26bd26b7edd005cd0e2268c7b34958b3f0636. 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/SEBIA0003090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b0abd85c19ddfccdf3ff6bce991c56e435b4896e879767e6ce5784da3e2320. 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/SEBIA0001020.
Beat Based / Song Centered / Spirit Led (Extended Version 2010)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0ee50dbc64c647e19377fca521a2da20099c9a813aaea0a41df1c3ddaa0d52. 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/SEBIA0003010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf796fdcf534d9e9d47598d5f5db38278772f333a2ae76c9852421393aeec9261. 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/SEBIA0003020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00a4f0961c1ebd88a148856d6b8ff7cfc96326e91b29db165bf45f8080411be. 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/SEBIA0003040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991ec12638592d53a5a89d8ba566e89048fdf0975326ff7979471d70b0e829bf. 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/SEBIA0001031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf93ca2d09089ffb4de904646c8d35fbb674af71be55b4e40ff3cf6089b281a9. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SEBIA0001021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8428e1645c4bb5fbfc0b45a82153ec5cda61aa900c59f872d710789980776c3c. 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/SEBIA0003050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27c38612592488e0f85fe6f34883350bd5363de805b3755a03cd3d327eb9958. 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/SEBIA0001010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6680eb08f45e04cb920fb340b2d4e2bead95ad0cacdfafea28abca51b925c4a4. 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/SEBIA0003070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36171b8ee0339ea3891489b75ce26bd26b7edd005cd0e2268c7b34958b3f0636. 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/SEBIA0003090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56157f19413ddac70209b4a0672b7221856a68edc7f54c208b4145c20bca9717. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:32:00Z), 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/SEXOJ1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b0abd85c19ddfccdf3ff6bce991c56e435b4896e879767e6ce5784da3e2320. 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/SEBIA0001020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f20262afc66fe11367b1ffdc6ebc8d747296c8fa1b36f0358b493128f283a5. 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/SEXOJ1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991ec12638592d53a5a89d8ba566e89048fdf0975326ff7979471d70b0e829bf. 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/SEBIA0001031.