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 0x31ce269feef3dd08922f2454070662d269af5d3d4c940e83b234911c92c41998. 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/a5828a53-3157-4b9f-abb3-40e136280c48.json and https://artists.proofprofile.net/proofs/artist/a5828a53-3157-4b9f-abb3-40e136280c48.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 0xe15b230e4d486fc83d10da959bb852f38aded6a22675f9097dc8d1a3e169b2b4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU1480324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75ccf7bc5e8ac3ee071fdb52a867ae428c32ea78548d9dc22c4bbc26a8ac50f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBLV61415516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acf95385c0d9831b6d2a3311bcfdf58b614104eb8b00a8821237b78cd4a052b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BEY921507273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6f24a14ab812dd85b10856135a4375a6a280463d0ca04a36586bb75a1eeb47. 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/GBBYB1602510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8d3050355ed9f5344cf9459468fcb1c0ef49f1109e28f7f76788ff84984775. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBKQU1664786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9750eb65e75072e8299292d50c1b03ae4718fadac9b57b10e5348c2320af38f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBLV61619437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699cbf2a3478b2f916dbb3e5e6989286e8bd50e6e489f6b4c79fff955441bc42. 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/GBKQU1704127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a858368aef34f641485ec58d5c488b3aec4a3a24fa03e9110aff9ed59c660. 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/USA2P1807528.
Singles Compilation 2004-2006 (Retro Vol.2)
Old School Singles 2004-2006, Retro, Vol. 2
Old School Set: Mandallah Festival (Retro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee5c34fd538ef6f319b8029697e92bf6d81e424146fb068da32153cdce1d8b8. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/BEY922307275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6953c7058e65d34eec30be87fe82ed2fbdae1198702645202c9f9951ce01b8de. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/GBKQU2487404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7bab7efa4c2ee1622811594cbd000546150c8e6f86eb0e6cf8a78b3a367788. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBLV62416155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae4b238b522c18e52c16bbf4c4f6a754f28bea2bd68787352dad97539e1fe87. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/GBKQU2529747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce9a523b70809edc4ee8e63806166d163197ac52d2d26666f9ad19c80330c99. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKR6V2582380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98f7f7225b8f91dad7b8340f53b36a4f3edd1da26122885e078bd9556553a5b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USA2P0611942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce8ccfa98fc62584d443d7117ab22c6356c69bd9ca5d17a1748cc04304a5dec. 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/USA2P0611946.
Mental Note - Major7 & Capital Monkey Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18a0de7a6b7893bd3f5dbf8eff6069084c341aee0a1200ba4d95d984e96ec21. 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/DKZVA1260092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277f9bd71a19eb5a4ddf948cc09a7feead2903f03c01b72e9a0dc72d51f4acaa. 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/DKZVA1260095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7b0e978f15ddbd872303b21adb1c64ba3d6315fab576dc684d7888b0e9134b. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/USA2P0600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dd626afb0c811878d0ba3adb3c602f5926b248609f7f951920054420e2cb67. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/IL4060900957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b0871a03c181fe6a9107ae341225e54fdb5cd3ee5fa3d931f91f2c64e0f9fe. 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/USQY51429010.