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 0x8343ffdb6d4e3c9caffc184332d4cb0526fa8adae3f8528e04e1c76cbe7482dc. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cde998ec-8e3a-4950-ad24-aedd301b8637.json and https://artists.proofprofile.net/proofs/artist/cde998ec-8e3a-4950-ad24-aedd301b8637.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Back to the old school (2024 Remastered)
Back to the Old school - 2024 Remastered
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 0x84bead3948b9eefc4a7d6cd3da01aadae24d8ec8b21ddcc7dffbfbbd42e15d8d. 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/QZWDD2490621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939e16a7cc64dd98be5e48f03fdd91bfc4674e443f7925593197d04d7d9962e1. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBWUL1956641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4504865aa0bbd1a704088bd2af1efe64ecd0dec646600613045a634c46048f1b. 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/QZ5FN1980418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca366bda8e996936411f933da254e8f92ae7758c1de5a551ace7d4528764b1a. 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/USLZJ1673053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec36eff13a5484ad21175153c0576f5ec13197b29ec42bfd658d5d9cb168e2e8. 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/USLZJ1506149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e646a158e9c5dade6fc35e3887e904b47a3d390bd2aa73f203e648a4b5c67a. 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/USLZJ1477343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8301433fceb124c09b36621d435b625cf7c64cb7cc669d038bfd9996824e32f4. 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/USLZJ1408929.
Handz Sky Up (feat. Sporty-O) - Kuplay Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef688427ce1841c460f5310c93359c1e37c089437c5e1bdf69a5c0bfbed04d30. 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/USLZJ1377457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759eb2ea1a42114d75fcc02cb627a3b6b00f924539cedf1c91149e371305cb5b. 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/ES09S1900603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc37b7eb9b294abdf2ab2a141839ea4b5b147bd0be06c86f0f3f961337c5209. 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/ES09S2000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cffd4ed663184b1e6be7e1785546aac01aed97525fc00c15ac462c97ca9a82. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ES09S2000300.
Ruina (feat. Jailed Jamie) - SKYGAZE Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a9b08623a52d2b4f7e5a5006a2b8f0864f661aa0eeea5a1af5daf37347f87b. 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/ES09S2000301.
Mono d'atraççionê - PEINETTA & Loop Stepwalker Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885d6c4db1f28d882dfced7cc5bce5ecaf2dbb3d0cc0114e5ed384d3442cc9c3. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ES09S2000302.
Çoleá pa tu mare (feat. Tremendo & Lolo de la Encarna) - Fausto Taranto Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba3d775db71f7aa31dbff3d491f1e2776ee691dbb31e81c1052114633d75c02. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ES09S2000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a1611b9abadc3d2cd42403ddc0e10862f4011a3cb10627bac59488e3b75285. 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/ES09S2000305.
Mono d'atraççionê - Tribilin Sound Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55443317f684fda338d9189747ca6903bc635357df5d5e59bae00a5f794ca3e3. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ES09S2000306.