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 0x3c781ec6e0b450c5c75f0dec74c76bd61838a17cd61a27cd7bb0172747590e81. 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/29b888c8-1f92-44a6-92c4-8601bbad5027.json and https://artists.proofprofile.net/proofs/artist/29b888c8-1f92-44a6-92c4-8601bbad5027.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 0xeb90d7ddbc912e329b1afd4bcec9abb55a61f8625066d33951109f2d869d00df. 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/ES11D2300970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aeda3de4847d8159f895cd5c5d6adbe89316a24e617323e458cc91fcc73eea8. 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/UKXN22493066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a036236b95e31bbcbed1c5a16a633c90602a947ce8d146eb59ed747bbb2357. 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/UKXN22480074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6135f96ea5b753704227fd712b7fa7c7c0e0d24039984bdd19f512347fada192. 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/UKXN22470160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6348790004d977a86facc3b8d49ebecb744261e9cee336d9876ee1695ae85f69. 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/UKXN22493086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53ac8aabe37d0f67cb09e6632fc25e5f5100b2e92063bb5fbdc8cf19e3a13d9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKXN22432644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6b1926b49eaafd18db056b9fee707dee69a928feffac0ff23b735790cc8649. 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/ES98D2400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34ca9a34ff853d594e8d928647c3ae3b73f9f6f9b6246625fbc74424e88bc8f. 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/ES98D2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b23c40c6769341cc1729d87ff967fe24953d749de43712e5f36152857b870c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKXN22341265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98786afff5c39e1313e0f5c1128dd10237a70222a00d4a4654b6b5efc218369c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES98D2300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3ce695b794152fdfdfea27c6ab314ab7e4a0649d51139bc0a00bacb66fa8fb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLFP2344826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760fcd902e2fdf22d8ee02fbfc8abd971473a8d6dba61466325e42fb21c77d46. 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/ES61A2324791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a8a1fed81e1f8a43c9a5590676cbcc373b912c33228415097c0144fb820c79. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:45:52Z), 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/ES61A2324792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c8b715c483e218680346dcf6099192df8fc1e27d7c2c3f31224c545f4cb149. 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/BEB682300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479755d04f4bc2630a8e07151628f80cf1601dca6466fb6f60733e41dd1f7872. 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/ES98D2300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f779c5db8aae8230927bcf08fa9a1a91cff99c0ef491aca1f23748e24c479c. 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/DEMA61906190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a480824bd7e2adee6e079da43a6548217c98a7a6f65272389d3d1e71d66c94. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:06Z), 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/CA5KR2215851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91141f4feeb91dcc8768f7a88cfb5b1b5ca56baff69cd9cf400e92341fba6ed7. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:56:37Z), 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/ES98D2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa835be3aa18b282c3a8a3faac68a986ab2fb8f56e2f37a6623cf9f88975822ef. 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/ES98D2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda6f18d14e83a913da4ef0fb2a5db78ff2501a2a4d653063bdfa20781609b1f. 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/ES5052000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2f184e29247cd3696d70472276eaa4b1e50b9aed49576cd394f04bafc8acd5. 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/FRX452088490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecba066f2a769c9096c8fed6a2124ac544768d8498302959db3f0fdd27aed6d2. 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/NLDD62000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1c1ee87c701fb1b70db435c806ebe166817a3876a67b2e9b216ab660ce7ca4. 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/GBLV61906234.
Destination X (Rave in the River Anthem 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a8bdc3a7d5238f62cba0c09110fe0bbd03736b9de54b2435f6f24e86f46467. 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/ES98D1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e164a918c186e4ad1f81f2394d3808a4d4a6bfc1b34731f3f18179891091af8. 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/USLZJ1914252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394e8374b078a213af32845f2470fe0bac2dc9390bce2f7443b871d7fe70121e. 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/ES5051900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fee1c31a7c0d51a2f356ee7286ab63af33c77d2f5f7956d3a662bb5420cc15b. 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/ES5051900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4864bf9ba65aec2f7e17ddd021fcfceb59ebb1818741979611de5574ece9b11f. 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/ES5051900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73af84a1bfd98e973886f60092d26ce00e202645059c6cd3eb015e226f53ec69. 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/NLE801717009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77326e4609e5e34a76577f2b393d128edb849d11b571598c300fc5609c4ee2a9. 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/NLE801515002.