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 0x571c9e85df5844bc44b48f218cfb1cd9ec6cc2c549bd46676d41bdddd4ec6ddf. 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/92a64275-36ec-4273-a6d2-c1e710466104.json and https://artists.proofprofile.net/proofs/artist/92a64275-36ec-4273-a6d2-c1e710466104.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 0x80cb3461ff81f7098d7634ac996d028d11e9f0541b7873f237a64fd5178056f0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAEI1938005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc137dfd848f9ab3ac33b6bf8608914d84d53ffa6e13bb8966825ca13cad3421. 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/TCAEI1938011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb090a341b834640cb7355c8fbbe7163b365f6acce0ed11dac5b4b5916fa7d625. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAEI1938002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55a387ea12676b3a7b96ec2d335a9d1fe9cb167580081cf17fe154ff7fde708. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM24S2005411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1ae1235a2e35a3350c4e0b63f9cdd8e09468cc1d6078f2930568526a9b3de6. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QM24S2008768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75ae578d4436f9dc488d9aeb95ed9e4cdc8cbb6407e4b27209c5c7dca736bee. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CBEFB2500283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f08b63bc54266489f14dc6c404ef4c6bbeb7fa4e8a6470558c941b15e542231. 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/DEUM72307503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f08b63bc54266489f14dc6c404ef4c6bbeb7fa4e8a6470558c941b15e542231. 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/DEUM72307503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5e37110b6149f5ea1c3c1dafa5b58645ea8f931b4fbd95da3e43c553d80fb6. 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/NLZ542001572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1812c459a24d125af77abb47d4017b6b49744102b52f5320cd0b1db60c889a8. 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/NLE802000493.
Discover: Songs of The Rolling Stones Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731a83a714cc2b7babfc6d50b0ea5aaadb00e5a97f21fd1a13e42a6ac30a2900. 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/USA172130152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8776314c40f5c6f795b501fe546514765d37a3d7eceb58b27baa2b4fee8abd37. 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/QM24S2005319.
The Music of Ray Charles: Live in Los Angeles, Complete Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3b05a784ffda8cea84af8fa47c9edd8894fcfd53b6918390afd6e04e81253a. 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/QZFZ32117042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adbcc9eeb144a7ed220e8fa22ef884775fc42f5008fd1ab04a0fdfb5ceba13f. 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/QZNWZ2003908.
A Tribute to Stevie Wonder, Live from The Troubadour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8896cac26e583aaaeb3751135944477560aaf06681b1676e251fcadbfcba8c7e. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZDA82397593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0456b03ce31dc1bc0985d85b88d3c3aa04d7b96d216c3be8a8488573e27faf. 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/QZHN72025453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71209c326a1387bff1e6eedfa37c5e8fc3d4cac54f42fa7d8177a8ff85222971. 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/QZPJ32232698.
Bad Monkey (Apple TV+ Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6985ab5c395a0a2d24a61aa1b3b6c42233f20a47d01c959c43fd14c9d3dcb04a. 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/USNLR2400924.