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 0xa1a14613b5f071cc791e3a54b932f03dc11de3b949bdef716ae75f3dfc6d806e. 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/00544d21-ee30-4b04-8e78-7dd98e4fce59.json and https://artists.proofprofile.net/proofs/artist/00544d21-ee30-4b04-8e78-7dd98e4fce59.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 0x109b49877127a1b305bd02d5897bcb1fb742af4986730ad349b266033f708ea6. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/DEKC41500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240b4e2dc128568e1412629b5dbee9eb90348797d2f4b8d90551bfe08f0800ad. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DEKC41900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83372f2654f7a8271ebbebd8d0acb90d6b558554bfcedb175d346a89f0bfd19. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/DEKC42000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e31ee1077ccd06b3af39d44eaffa9208c9547be9c2405297479c070c4473eee. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEKC42400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8a1fb85be141dc36cfc6e78aff735a5e0c51ed11829db48c6b581f67aeeaf3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEKC42400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107206ec3ef6e2153f14035d9167b09c8fba72a03fc9f2d72ca259ef7e32bedf. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/DEKC42400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03fd2056af667baa83077f966b643f0d4420e508a493c93504fa1f1130505d6. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DEKC42500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb1236dd6b71dda4adc203174488504a29c8a66e9290b3a94c5f8bfddf41c85. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEKC41300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8575718c13c6b90b567223bc15aebda0319a88359204f328c9ae1ddd762f426. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEKC41400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7578469110d650ffc9b00a12cc0f2770a13d915920e4751967995672a10c621d. 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/DEKC41500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594d4849baac1bad08cc8dc5715cc1d2668876bc523ee7a2f2dcdd02a2536723. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEKC41500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4fd164faedc7cd3e7f33ba5c26292874f31eb1ed73b93fe7bb81570962488b. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEKC41400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83ab2c8972be3c7c17e1a512ab563d04155e2d63b906bf61f5ea11dc0c41c46. 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/DEGA21401441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124d4582f1bd0a97ae5d0e610d2009976154e36d8d499ad7327744289ce8cab2. 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/DEKC41600063.
ASOT 989 - A State Of Trance Episode 989 (Including A State Of Trance Showcase - Mix 015: Jorn van Deynhoven)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe46ef4c74dfc495cd0f0bafc7cb567d706def4d598c7c53ca132643d3a54c. 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/NLF712012533.