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 0x6960164de70d28da32d98cea9f4e8e23f94f4a5f9d71d9ec5c9efbc20fc506a1. 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/afaae734-4543-465e-aa29-ad2602edd3e6.json and https://artists.proofprofile.net/proofs/artist/afaae734-4543-465e-aa29-ad2602edd3e6.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 0x6b7d10b1693c770f6adc8547d1efd3ccd820dfc36ec0500c5287a06bae0ad652. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/NLHR51494953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4f98882cdaac544e372ff17b82cb0cdfb03c5ea3f886b56ed238d7349fb0fc. 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/NLHR51495041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1864bef9b720ee47d38a4e6ab00aa97ad3efcf29d9b651f0b517c2c8b54f8d87. 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/NLHR51493669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9d6925c127b1a60f0f23e19b2220951cbf5283a1156947d733f9cda599d869. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLHR51493674.
Wonderful Feelings (16 Romantic Instrumentals)
A Tribute to Mike Oldfield's Tubular Bells
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb605238f8b6c73315e4998ededdaecf53718c39c339c6934a506f5c2eb8d4c6a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/NLHR51251097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fe807842899ecf9e6f3ba197839fa43715cbc660e22d5bd3c564a40808f550. 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/NLHR51259955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcde93afc393463ea1a88885085c686e79408cf1a95da93aec8ec186cd35d849. 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/NLHR51259939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ad0c6f103ae57672ad7c3bf7a0d6a1f03464593a4351f174b4615d891b74ad. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLHR51257979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aefbf35ab07ae5803d792187adb98fd76631bf4be5afa9756c82f5d45fabaf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLHR51257980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc03a147007582a114a31e78dda2963ac948e7721654c0b5ea0779d0c4e3b1f. 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/NLHR51257981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651c3ea0b73432d13e8ec510d13c0380064dfccae879cd74663401755f44f94a. 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/NLHR51257982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab97f36710e9f8b0a7be39fd452ca16ac03865d53de9c275568e7a8dce1e43ab. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/NLHR51257983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69193622fc3de3c6604429487e1bb75815cd61206e4628b24adcaeb5ded91bd9. 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/NLHR51257984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb828eb33b181e670f607e49809f76d70dc14c04434b9377839141cbb9a47a7. 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/NLHR51257985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125511ed299cb418be6e5a9dbc53cfe29b2d81a43a2c0d022a83affd7676130b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLHR51257986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9b33e3a76af4e56f937501d828b59de259ef77752c6f3327edd26cb0171301. 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/NLHR51257987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bdd603d2f93342b9eaed59036c6cab47b13ce9aeeaa7cbc5bc68fab0a948da. 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/NLHR51257988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c22bfb73d147e4b70aaaead8402e865dcdcc16653aa946b7b6b88e02c5b76f8. 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/NLHR51257989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f499f5455e17a6379365a65d87b9848414578395058648ba064c27f951ad4d4. 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/NLHR51257990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4401e2c68fd63a29e9cff18af7dc2e049e303bffbdae96657621e740ac7eb34. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NLHR51257991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788e2b796f6293f888006cd9e3fee2e5309c6e200618bd4a24fce5c4f6f36cc8. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLHR51257992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9b14e4c160164c3d23922d9bb3dabe22195facd4bbfc8c1681f7fe5a852ad3. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/NLHR51257993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9f0a8a79e2b7e8f251d70c3ddb981554960d972954f22f09f761625d3b489b. 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/NLHR51257994.