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 0xb473ea56a1fdd5cf938a9c720b430380dc6266a6d9cb7581e9f744b956208cbe. 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/e44fc705-b453-472a-82d7-3fa6741ebb91.json and https://artists.proofprofile.net/proofs/artist/e44fc705-b453-472a-82d7-3fa6741ebb91.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 0x650c71f4cb0fb25133eef70dadfee8c259a2d41ebcbda5eca087eb32a332c56e. 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/ARRE31800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa200cfa334519ac9ac102cab4ffd55cb27a3613b7a3f057a913c208a0dbb6314. 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/ARRE31800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5e585b2d218b57daf5d15da71bb9b539471e417f3bb93ae7a2fc03e1184540. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ARRE31800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b996b0364b9b3c22648d66238634b185f6ff852c4690297c7bb397297b087e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ARRE31800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01012e9e1323e6310445730876fdc15c21acf6af119e9c6fc3b008d415829c3f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ARRE31800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3aa2c660751ef6b6063d674de81ec3f40817d4134e4c256cbfcdcf939b2a739. 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/ARRE31800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb039f9a882da21fcf7716d2ce4ec59445612ee8d66d0f33988ebe4c7655b42aa. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ARRE31800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655d460938d57a11c773f573ca9268f6b8f2ecbde5513d7c5b00b2753976fa98. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/ARRE31800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60804e7c7d70c1b93ce7b0b1e922af8c0759771e94d19141301dd463aa626466. 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/ARRE31800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf9a0fdb1d54b789054dfe6c4883d76e765d29fa2b69fe7369e681d84132016. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ARRE31800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401152d7fd724229e1a3c53b58ade4d7f2c515daab99a2d7a82c3ad0b7ff5318. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/ES71G1923833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862d8043da6a4f26a63a14f8c781f6d0e65823c2268494eff9c412d7560fef22. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ARHXW1900917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a369f60502cfa94b365d60add5b5842646983669b71851aac8c10058363aa2. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ARHXW2001508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607ab2c0261f31412328a53c06b099caa0543fc85502b4c94a3597a1444e134a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARHXW2002880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95b4e64eea1f18651fb7616b43920286ed3d1ff1de0312b017fac71f0063c99. 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/ARHXW2106165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ae92a56e0841facc5fd50f2543821380cbdb6dd60b364641d4cff311d8afd1. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/ARHXW2302316.
There Will Never Be Another You (Rumble Studios Live Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613e9b358f59d56a31e322b773bf2375226c4da34f27980c8b682bd4d915c271. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMFMF2582063.
No Te Voy a Esperar (feat. Hugo Lobo, Big Javy & DR. Shenka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366cecf0d73cfc6661ddde952c216ce58ab64993203810d3704bb87053c9ff3f. 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/USDY41525383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694d53442866b9688ca0ceb3027c053d17f1d553ef47cddc1c9c03d1490b8c2f. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TCAGY2374592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ab8f19f8d542515f3e234db691a722ba54a4f66b882f16a51259decea6c3cb. 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/ART0G1204220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec775a1e57d538b6039633aec8dc7eefbe7ebcb7b218790de2af6bb8b387b35. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ARD792000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9434788ce19663bdc3ae81f297acee0f0e29c17b9a5818abfbc813f8627be95. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ES67I1700051.