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 0xceb60ad0419ec9a62ba349a8d9f55b2a003834ece00618cdf4b6500252e79e69. 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/c090e745-03da-4147-9620-aac4e969310c.json and https://artists.proofprofile.net/proofs/artist/c090e745-03da-4147-9620-aac4e969310c.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 0x4730574b569dea51d4524a2a575cb8e2aa04b277fc7d7e9dd061da9fb923a01f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBKQU2102026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ca9022a697100e2748fba2090653318939f4ae042478edbd350a7d7b3cfc47. 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/GBKQU2125483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda397505d88d185cdc8cdc4bf473cc0a0cad85210ca2124002998802e3a90e53. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ZACAS2200011.
Situationship - Richard Fraioli Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbeb999e5d62882c0730d1939263cb4bcbecfd2f18c1be65b9777751bcb68a4. 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/GBKQU2123306.
Situationship (Tommy Capretto Extended Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769ec09a761d159b29c284e80869ad57bae65b79e0d4a3c1c231a991b4228e32. 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/GBLV62004631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b491fe35fd0c366026c40c59053517d282674039ccdde682632cb942908cf6. 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/GBLV62004635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d1579d49c45991bc4de42204fcd2c9cdea941e2f57f60f234c12a03321c1ed. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CH3132100555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd554c4be6fb9f0f185376c83f05fe99ed19dc768b93a0f91e4c5e73d8830ae89. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZ5FN2223090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bea44d6e6d72422465952db5878442e3c00ecfdce7c014ea57b932cb424b213. 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/GBLV61925993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7305e36e2f860fcd8919d8ad1e559ccb60700b73e5b6e41b70c608b0ccc2b5. 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/DEWW41900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f1a9f95467f80897ebd4e440b614da7635f40c7596e947369c6c230d6ed7d3. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBKQU1938134.
House Is A Feeling - Robbie Rivera Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a360bc00897d2b47f962dfe6e0e85031a43861081bee45e09fe8f306ab4c28. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1983303.
House Is A Feeling - Robbie Rivera Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2829c888d86eccc59d97add70faedb2da04701c534eb0fba9fb4bf1f86c4d988. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBKQU1983302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d12a57ad5f33b0cf9100189793225a283c051ecfd974ae005342b305d62fea. 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/NLF712102759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1c211f98eb0309ab70265b25316c2f6b6bd4673bfb1bfcaa1eddf595f269a4. 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/NLF711709001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abc16da6e272420f8d902cafb725bcc39bbbb55e24feb9a02bdb0cebee5d5cc. 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/GBKQU2103847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130548e991bd9481381ba8b62a49916f359e58d11af89556d8258c350de15115. 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/QZMEN2299467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e93f79d612c9efa690533941ddf9692d2707bf7e5af5b08436499e9cd763403. 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/GBKQU2172960.
Boy, You Can Keep It - The Cube Guys Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4190f8aae5acea651e78934018e3b184c2258faab808721e5e277fa55a0e29c6. 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/USAT22001751.
Boy, You Can Keep It - Tracy Young Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15961e2e841eb2dbef42506fa8b3700edd87a2cc17cd666c71f72124f461bbcb. 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/USAT22001373.
Boy, You Can Keep It (Chus & Ceballos Club Mix) - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6db7e6e5a06726f159b17e71cc737097fef813953a1992fe4cf1808364b19ed. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USAT22001134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85ae6f53ee8eadac946577100c2361199202a5a650c0bd51f383d8cd1429704. 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/USAT22000553.
Boy, You Can Keep It (Remixes) [Extended]
Sail with Me - Funk Specialists UK Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4120bf71b6cf2a8072d99472bd8cc7eee64d9f8878a35a6ce4e11e94b9418fb. 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/USA2P1895819.
Juicy Music Presents House Anthems, Vol. 6
30 Years Of David Tort (Live At La Daurada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dca883f97d51b6eb3a940d9416b1f8e91e2411faccdbcd2702edfe334fd93b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEW871701782.
You Got to Make It - Robbie Rivera Summer of '21 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e29dfd504f6d29c7423dc515ec7ff429978ce50926aa54e271613630c6640e. 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/GBKQU2172957.
Been So Long - Robbie Rivera Summer of '21 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38fe38bffe19540250c9253f130b5586c9d5159b2f14eb4c81584d7c34f5e9a. 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/GBKQU2172956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107e735616a0cd6987297ba57323d8bff3a85f5e20d6d9273c67adda53c6716b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBKQU2035369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97af967b07335cb2fe9f6a48be2a2a864c2a12db1b4279bd4fcb9f7f4002dc68. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBKQU2042009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5067651cb1f20a6fd01488a3aa0b8050be59fd80cd69b7911838bdb2175169a. 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/GBKQU2044357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90a982904913a62afbf841dc9f6d8a0bd459de7a773422a2e16788cac44d3a0. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBKQU2009371.