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 0x4245dabea604b15e3da197b0c311fe7e0f6ba5175fbefa320ff888a1139c1d98. 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/8101b297-79de-418f-bb07-6dd0489be21d.json and https://artists.proofprofile.net/proofs/artist/8101b297-79de-418f-bb07-6dd0489be21d.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 0xc16f79377078f15589997d9254c93b5878acb47384e4a6b1e5e1a3634423dcfa. 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/DEAS81100453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761d71ed7af8d0eb426fe5552540dd0b27ad24c46a8ba25a2679ac50194a58d0. 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/DEAS81100424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128cb9cd11a5d96092d5e72cc6563e8429bcd20c9aac7216281fc0e0337eeeea. 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/DEAS81100425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33f0526a0cd507d5fc3759e037ccb7afefb060284b53b115102336d9dff4cd0. 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/DEAS81100426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4092288163433908013c5a65176b1d0f06ac8e5dc5045bc0399e7d475f0820e. 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/DEAS81100433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29d3e6c35577e6189ef4beec4898f9e79224a3c1aa913bff5643cdac9277ef4. 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/DEAS81100434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf292d0a6d75e3b73e026ebdb64b0c08c06c394cb6e5623f4a2b1c016e609e307. 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/DEAS81100438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe691a72c1a93b0f5ab323b67e7431fb9f51efe7bf10585369a260f940bb0e916. 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/DEAS81100439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c99bde934e1e7b12520c0d1a720c5039b39e154d15f8918dafedf9efc0861cc. 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/DEAS80900189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853bed479b82d9957f0bb09dc72d98088967f96fa660d658f0fed7cb034db60b. 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/DEAS80900190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe510cd2da5d8a7f6812eb3b88ae3919b4e7aaebd62ad602b34c1856193e9afe7. 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/DEAS80900191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe63abf42a216d1c09428fe3c35a4802b7059e5f8dab31f4f59b7373549e7b9. 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/DEAS80900192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361c0945f7ce8fe41e95eb38b928181f0eeaff98b92d4c142aed4bae4bc723c2. 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/DEAS80900193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1959bd035b8931a1ce4d823121b1c3039a6903d33c742d71189c9c3ccad778f. 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/DEAS80900194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a7c97b81ebc51744d05efd4921f1765aaa987030a477140bbc421f4416b408. 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/DEAS80900195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe94cc388ff6b34a6729067dccded173d882eaf5a954de7a6ad9543fb8ec5a43. 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/DEAS80900196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26460a7cc92812181762757191bc47d6ad9c52956ac116e74999b5c17a5c82a. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DEAS80900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa2670d8fe2835670dfe3450aab306bcd55664db5663b15864c002e76edb7dc. 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/DEAS80900198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7884d6e172371bd7c7a6515a44c4df9b4069c86737fe4d1413a6c52c1da616. 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/DEAS80900199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf5a5709e3f11099573898119a7efa1795bac9d448bf2f272b73373ea3bcc2f. 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/DEAS80900200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d509b582edc988d74487cb69dd7a34219f0c784ed5e1ce52f63321505bd61a. 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/DEAS80900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c867dd67e50823fed6e36294f44c7b0ef50f96c3d45aece12b9fbb77353de26. 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/DEAS80900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe6ccdb08ff306505d903dd6986c09db51e477bbf0dc251a1185598b137e77d. 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/DEAS80900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6178e47f3a953bb764e8641b5d279f054983c9b29ded7f549f8d701c11bb7991. 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/DEAS80900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb48e7b7d0fa210861895f47625b4b9759f7b83eac7958e36ace9fc02dadf6c. 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/USA2P2256318.
Body Art 4 (25 Erotic Lounge and Chill-House Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc93b71eca107cf0be2ce43e4a1db4d0ff15ee000a2321aa4dda6fd64479c3fa. 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/DEBG61502765.
Passion Lounge, Vol. 2 - Emotional & Sensual Grooves (Compiled by Henri Kohn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb8cf62b29283cb81579ff1d8922242d291003a3b4cbfa132795b065bfe6491. 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/DEU231500582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb239fa6d49d2df55c232ab3eb587b28a2339538300f91d6396520ee33104124a. 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/DEBG61703359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b1e026472606c8f8b9b540b4dcef7f926bf3cf2493aec1e9c19f9fb8011bce. 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/DEBG61502658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55369937621439140a9ce1cd9d621458a3791cafc74227f751b1df028a814fb0. 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/DEAS80900262.