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 0x2a27d00a6fe62e90e63fe2d748184f32391f2331991ca4b132b452eaba876fd4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f8cec6e-5bbb-4120-8301-d56d70079adc.json and https://artists.proofprofile.net/proofs/artist/5f8cec6e-5bbb-4120-8301-d56d70079adc.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 0xe09ea73b3d0e71bbbb55f728834261a0ea17ae7116639088a47bee6802d8fb15. 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/GBUQQ0194401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27f90e12fb23d15886acb1443953703f900d4e5bcff193acb132bbca0fb6a23. 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/USA560646328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177047ce4b28a0274aba7e6106d14e1d5cc09d76a55a281e508f99c6466247de. 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/USA560646329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116ca26f7662d242bd2f05fda98e1f3dac1bc93f0e7c067ac825684f47113f8f. 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/USA560646330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfefc5cbd7176f6a352a372609ef627159574b714126722896fd86dc46d5a50. 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/USA560646332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc514c10da588ae133cc2f4ea2fde79686f13d7a9b3080e74c125cf8c6401d965. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA560646333.
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 0x7e68ba877e8fef297332d879d5524f85f777f99bcca67b3a305c6b0625898d33. 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/USA560649164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10596ec2434ce8d0362ee80ea0c0ebdbd3c450bbdffe4949fe226e4e2804df39. 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/USA560649165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1638c5b0174717c2a32756f23b4fda6fe82632857f87b97bfed40fb9f945241d. 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/USA560649166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fc6c5fddab5cceacf4cc63ffefc56d133bd90898c9ec2554d0cbc8147908f9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA560649167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6879b21aada98ef97ecd76fce33dbd098a96ac343b47258c1a331e8f7ac0e18. 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/USA560649169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c626258d16d1c5e35342e8ca33a2f4fb9ed5d2a1bdd0f9cb127d883fad1e43. 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/USA560649170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850b1b7f90fac9cd8c66fe1e6a1dcc0f594829ef27e2d06e02e8f5a053ae2058. 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/USA560649171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e04231bae7b53ce24fe00935a3b4d35cff1674bf9bbb1d1c55be74d4f6a9388. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA560649172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb00a6200363a36d73c56ec8c3f2ed54901ab303b398f04b596a97a752f9a4a. 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/USA560646748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3296430235813a7a21536c661f21449debef0cb5aff33b6ec082e8b79f7c1ae2. 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/USA560646758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fe7a3573a03f7aced244ad8182a34bd2d1aab6584f4d872544a0afe1205546. 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/USA560646759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2e9902707999b98b8c5ede74bebab8c8eaed519f76d117b51e9a7c6d8ec48e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/INS189813229.
Dhol Blasters Mega Mix (feat. Dev Raj Jassal, Pala Sidhu & Pamma Sakrulia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fd8269c20d10ad1fb74683656f6a155db857893857f3045e0c4effa41359cc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDHM1525646.