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 0xf87bec028197ad35360309883b1d2df601953e45fcae18e4d24fe608af71ca2d. 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/09edb152-d15d-497c-adf7-67749b83e557.json and https://artists.proofprofile.net/proofs/artist/09edb152-d15d-497c-adf7-67749b83e557.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 0xd21395a0a67da0d455f5429e118e25540c7e5fd36089c77d7daa5e1cd21a32b1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZTB62458768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557f162320cc25be446c6e02152a8bc0e0a6e55b75708c11b376c56522fb6e6a. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZTBA2499649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9dc6566e714906224d49a92cce38f2a439294140d4cac428efb6d3384f1f1e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZWFW2414437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc5255859f10cce8a1a41374a0d9f96358936aae28fe83ee922c1d69bedae49. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZWFW2414438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65f8acb2eb2973d446dbf018fdc251c7f68fde85d28c58af2db7961c828e1d7. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZWFW2414439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44655d7a5f745956efc3efc547952402601fe7af8efaa8b78192dd0b5d6b467. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFW2414440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76da3e19f3327b959e568d104dc1af53e037feb303f74f42e5ea0aada4aa357f. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZWFW2414441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ace3f22fd4bd0cc4b538d34bf3746bc06a48f105301ef946e40f0ba5bbd56e2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZ7L2429579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3262c3c923c69e0e3ea284600801490d060438336693058c6dce8ab5d8cc9850. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZZ7L2429581.
Eyes of Love - Progressive Trance Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7d147eaa873f318ecf078bd5cca4250011da1cc0604b6bb24c6a2ddc3482a1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZZ7L2429583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf83e0fa07005f99f16e97c91c48bd6da4e133ace5d38989138bce42697778c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7L2429585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1dc31855cdbc831fce0ae54176d36064313a27204d256bfc1eda517b0218690. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZZ7R2492693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a44f2de8161f227814ce7f9046d4f960e110d45363a211ad474b054345a090. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QT3EX2458689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4877ca80e84653d4ff1d80b86058ba1d38d200990937a5b216c9948201a24044. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZHN42549505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6025dd61b4c540b48540d1c2b360fc6afae206680d54ce1d421a1d94dd086d2a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN42549506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d7789b96640c4d7035f1ee7ff21ce0c5d61e66494132af9f20e427603964ca. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZHN42549507.
Just an empty space - Progressive House Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d65962347ca58df8bbc3edb96f8e0e7e0adf6b852e5c01ccbe41049cf0855a0. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZHN42549508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4236841eec8ebd45fbcc8784482b97684ff3ec339383666dfaaf507e98b5d038. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHN42549509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3dc89bee4871ed234a2160cc6066a59dea6fc159942c45a36cd851061f7c56. 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/QZK6G2515834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2973114b956805325d0a29009402aef54239005fb23f04fa3c00abaf884b4ba1. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZRP42543534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab60f6e6fd728b6e1053952843b49be81d96b2eee0ed4fae733071fcfed95d14. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFN2419429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a2900909b00fba5e39393bf482d15cbc24085f256718d64c156024d79d5032. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZFZ72570037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3dc89bee4871ed234a2160cc6066a59dea6fc159942c45a36cd851061f7c56. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6G2515834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85b590278f3df8d85fa3ba8d905342360404f478a8ba1150da28d16c55c11fd. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZWFG2463052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0717cb3dbfa109fd74df887cf10ed576a0e5f8c3c79ff9f58a1c1e159dbb04e. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZHNB2594575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc5255859f10cce8a1a41374a0d9f96358936aae28fe83ee922c1d69bedae49. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZWFW2414438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1dc31855cdbc831fce0ae54176d36064313a27204d256bfc1eda517b0218690. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ7R2492693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557f162320cc25be446c6e02152a8bc0e0a6e55b75708c11b376c56522fb6e6a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZTBA2499649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a44f2de8161f227814ce7f9046d4f960e110d45363a211ad474b054345a090. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QT3EX2458689.