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 0x9f7976908b40a7be9d23efe05e90e6679a4fe7624145148330ca3cffabb5d420. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50d7fe2d-bd4e-4e1b-bb62-d82fe7857371.json and https://artists.proofprofile.net/proofs/artist/50d7fe2d-bd4e-4e1b-bb62-d82fe7857371.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 0x50a203bc5440bbef43f5a4df93075f03a55e1be0afef2376cd238de362084b2c. 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/GBKQU2061036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0ec388801c333712248e4cc03b10fa50c38da3106a795f78676f7c868ec2fe. 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/US83Z2018336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd67931067654fc9e53c0b7c08f39c6a6ac926c2f69e5f98882d6259de3067a. 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/US83Z2018318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad82cdb096a64fe15883223e2975b5a1b4b7e7114cd95f9b79e0d17a4a57230. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US83Z2018317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe2e114769ea0d3736e348026c7044662ae0b0962ca688082fc65e2ef24cbfb. 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/US83Z2018311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ba13f5b40c814d9398e114b59ce108d46a37369677f1ecb1bcf3e474faab20. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US83Z2018337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0222b9456333856c2b65c254fc9da99cd5c022401b29a59e07d361ebc9623182. 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/US83Z2018332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe30d9c718afad1b8145bdbb9dab1386348c9ddc533404ac7a797e8f12a0d67e. 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/US83Z2018314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20437a5ea0f2d084f2f2aa31474202365956f82e8934dce2bac99857cdf446cf. 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/US83Z2018323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b1e6303b6a5d6b59e967a008a69ffd7f99bb1224d76b6fa5ee82cb505f2a38. 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/US83Z2018316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e52d5f8f3e083318881381469d21fa98ed5384fb279b30c341df7f18ae0641a. 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/US83Z2018330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088e453cb9eef263a5bdcfe426594040f6a6613a6d03c95b462b3f0774b5e3e2. 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/US83Z2018322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dde038df096756668ebc821bda5558a59305d8a246391488c6a8c6c08b4db6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US83Z2018335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd3e1d27dc871e34a09fe65705ef2e73b4aa41e908ff61ecd4b3279892886e3. 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/GBKQU2092735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6d3df43799368398ee307c9a684c1e961055a56e21f480e366b25ba9042004. 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/GBKQU2092736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbbbb010740f2d7baf59b534d23e9b661e32d7ef7f0face3021f66201d2036f. 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/DEH742044577.
Orient Calling - Billy Esteban & Cafe De Anatolia Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdca0e439c71b44c4a95bb7b3e0dc354c5b2e075e7f5bbe6104d184500203554. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEH742044580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8165b8a3c9038199088b5ee15709b1d4ace4d922e42d1b5a1db1b54f661df563. 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/FRPES2001450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c35905217837d4b1461ddb781c52152f7be85707079827726b4aafa11e9e45. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CH6541774941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09399bb16f53fcdb9bebe2ab75e850ada723e51188adb07931991d125d7da1da. 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/DEU671704610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79be1ad41312cf2a8e62c12d819aec9c9a0acaff9132784c900a4f70f3abdd0. 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/US83Z2210049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7e91c6898e39073f1ff43e8f04e4c929529180f4234170a4e455a808e5aa2. 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/US83Z2039435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42a5d389b90c8f5f61e0b94679019b5c5e541f6c0f7f91f44b6ed26984ba7f6. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:52:57Z), 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/US83Z1640679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6860f423d683871350b2fa3674fa1aa6dec9b96274d1dbd0b8d46d873fbe1c26. 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/US83Z2221864.
Orient Calling - Billy Esteban & Cafe De Anatolia Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdca0e439c71b44c4a95bb7b3e0dc354c5b2e075e7f5bbe6104d184500203554. 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/DEH742044580.
3000Grad Compilation - One World Our Future
Digital Structures Alltime Mix 01 (DJ Mix)