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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee24aacbfeae6436e3624f1745a06b3ce80f60437a3c938a902ce29ed399cc4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59198666-ce6e-471f-be9d-3027b173cfc6.json and https://artists.proofprofile.net/proofs/artist/59198666-ce6e-471f-be9d-3027b173cfc6.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3185eb1efe726d9442c69d0622ff32490d8b7e9d80e7343bacfab378b2bb82e0. 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/GB3BQ0601001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1094fbc842fbee210024e6cb14e9711ce7b1047d7b7b6e854966a8ca50451e69. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB3BQ0601004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7819e20b8aee6d621a80a12a0821bff599c6a105c085b883b3fbd219be9f7ba7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GB3BQ0601002.
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 0xce44b40720ebd98b9dd515a855ec62ee9ebb60cc7b3708544978ca829659834e. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GB3BQ0601003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7534b69f10de96cea846770d641bd1515e8c04e959d031313d30d5e9296b4f9. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/GB3BQ0601006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6460dc0621d94c3fd4b25d494ec11a230e2d3250aa4c8c9e49f8b8251df8fa72. 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/GB3BQ0601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa24740f4fd3a7e3de6819db99d0f78aec5dd6cdc48109cd695706189f3cf2f. 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/GBEBR0400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4dc7acbda23654c1218df87a4f1ce2ea319bec6f88bdc29fc65bf038362bb5. 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/GBEBR0400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e54789f2f753158518b44fb146f0a1a1f5104fca0b7bfcc03529a136a49337. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBEBR0400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce55ae2354a2cdeb7db2430f5dffe68ea9a34a7962b8a44b6a6e824af28007d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GBEBR0400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6204614de21acaf504e4aeb0d48b59037eb1b394fffe972469cbd06a12c4f008. 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/GBEBR0400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7811e6e302c58b81347599baeb12cfb25dbbee64aa9e7a7ff0e3ad2e7335cc8. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBEBR0400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720434af8fb64dac281fcdfcdc6b6898dca01123aa2fd63fc1c7337a22d1a30c. 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/GBK7J1404101.
Heartbreaker (feat. Pargat Khan & Jagdev Khan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f75326cc3335cc0e9065b1ca74ddf4f379d70923456b3d524528048876f099. 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/GBK7J1303501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fbf96db09dec78c03c80ca26c8de4d599bb3f31b5a8d25d5a225afc2f6a8bc. 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/GB3BQ1211002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967545712c35d594854191737b26abcb48abcaab9742364074a0b20dac0e8c87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB3BQ1109001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c6aca18146eb5b7333f8fb26d00cc0ee297280a7759aa5d50a089ab6542f5c. 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/GBK7J1302101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8d4a0e2f06c93282551933d2daf39f8f98ac4bfde3cd6fe5c6dfa7ce08cff3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBK7J1201801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeadd9ec02b78858a3c292a7899d8c5e2b9fbf6cfe62d8192ecc2e42bf2ff046. 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/GBK7J1506001.