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 0x764a2b5062640eb99858d0ace99b8f4f7214bd565d2ff66f2e64170af39998fd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42ddc97c-ee3d-4594-90df-170765cf299d.json and https://artists.proofprofile.net/proofs/artist/42ddc97c-ee3d-4594-90df-170765cf299d.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 0xa6d121dd0a7b6127b93189f7b65614b8be35c9b61272b91f799871f15daedfdf. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBSMU1697713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc904197a6314477e03d540225a5d1b38642cda6105d9eadf8b3685de71546f2a. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/GBSMU1697717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fedd7c364cd96403c5c19b3ad9e8f4253fc72a30cdeedf071cd00dd0c3f22bd. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:51Z), 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/GBSMU2495225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5692e9e72cc673bd0389a759949b5119f4ebd20347fc87db7ab0f20fad0c9bb. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/UKG8V1900028.
The Walk of Thunder (The Abbasi Brothers Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c72ea23f8d1d24701f5980facc642abc60b6591470125d0976a6e771e43223. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/UKG8V1900019.
The Comfort of Home (Slow Dancing Society Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30724fc4ee8a55fc6d9d2664bab3aef9073bf9bc8ca5ddb4a25391955218cdc3. 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/AUMEV2135796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c5e6a97f347c64938b9b257a29695c1be4452f051f5cb0528a9f43da3c2d7c. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/AUMEV2135799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1d9cf61aadd0e8bc4b5dcfd266c5cd84240353270aae7d003bd92f2ada13bf. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:09:47Z), 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/AUMEV2135801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b58e43299474c37749e262c38c64da624905272126655843a2d76be4437653b. 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/AUMEV2135802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb044dcbf30db49fcd2b8aee17ec2824519e2b71341105f6c15a71bc5ef71557e. 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/AUMEV2135803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939c40e7fb0972dfdc6e60ee6b2e6558c46fe7d735f010a134d577bf514d1922. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:48Z), 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/AUMEV2135804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbde5285ad32eed020c6f86d3881eaa271e86148b1e2227f13f3fff496bb7bcc. 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/AUMEV2135806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fe819f4bf49bec7ef68b7e7f5ad28a1aa8ee9e25733610dea18e7ecc187c7f. 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/AUMEV2135807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508e4e935da99bbbc8d8db0e7bc2b216fa83bdf25945092ccdaa3ed965b543c5. 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/AUMEV2135808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b40efa5bc2f352684ee953b3ffa2cd937c88efc0f12f70c4ae4c7e2ef5fd91. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/AUMEV2135809.
Ride (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9444e166e799cfb6667ededa6fff8901e8ca3458d07228056c34ba52238313. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QM6P42472627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffec3d9cc1d10c661a8506707cc787e4c297056e03e0a4f7849f71f1f6102e61. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:49:12Z), 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/QM6P42472630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba028acd6876d72fac3b73d2ec55b4229f773695098c84be6909d39bb85b5369. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6P42472639.