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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884aebeb2b6003bde27831c452889034f24a482c9a01c6046544e56a553ce32f. 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/70980a22-c0e7-4575-a99f-49ea3d1c9877.json and https://artists.proofprofile.net/proofs/artist/70980a22-c0e7-4575-a99f-49ea3d1c9877.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc57c6bcd5b24a01fecd4b712b7e7ceec1449183eb3fb29d767ebb27fdef29f2. 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/DEE862000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4f8a92c1cae4783e5afce86c91a640a081f5e5276cc74c58679360082ea4c8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMBZ91939766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5072738cdc4fb418ad9c53eaaeeec98e13743073759635ef074bb071ed8f72bf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2102865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd10a8fffad80f262dad010a985c40740b0101728bb1407443ad8511c04d6289. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLT2H2300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79b11078c6822d0ae1316c9ac851b33592e7343ff473f950674aeb5b596fa9f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLT2H2300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7866c8166337cc766b87e13561adb9366146955bc9ecacca515f7bae01c12226. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLT2H2400668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5569c4748badb1417c4f38c8d163dab68c051a8aff52e5724911163a9b591b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLT2H2400669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e3ea76e9c991f59fdcc637eeb53c8ff0785a996982192a20e2e61f2ba06672. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLT2H2300964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd182ef1448a8ef571ed4f675492f5b84377f64986086f8d52e551565c7e21edd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLT2H2300861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2add3a39d0594d77f9c92cb447355e7be3131b97099b8a8c94bb3f69a0416776. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLYK92300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0719c8d7961eea3ed00320316232cb7273c93f54b36dcc717e0e1ff97e83c91. 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/QMDA62118302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e0cc6b3802776dbc30bc327303bf66e4a74045615b433de010941b744e16ac. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6P42125269.
Don't Feel Like Dancing (feat. Cally Rhodes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc5de68a0467eb9b3c3a1beed0320181ac532c53cb529893f23bd172c8e12e5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2107331.
Don't Know Where to Go (Dualities Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4233272b9253bb09f0925a2d081446b3a74fbd9f1944c15a9645f952b86a0e65. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM7282049013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9d89aacb6fe767ebd8e5e2b812431f3919e638043d8684722f96ab7a3a7e6e. 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/QM6MZ1983095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf855767d7da9bcd4435168b7d5f016020c0194aca1ed5ec8647b412d4aa3902d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBSMU5788828.
Summer Chill 2023 - Ibiza Chillout & Lounge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461224a857168c9de8b544cb2be22618b3f3de2838ae143196812c541c209cb0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX8KD2540896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e6c6c681fda4677af22c2392674841c3fdd9b963b7735d842e138449568dcb. 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/GX8KD2572989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4415da26985f4ab7620b8f66c342dc6908b1695537b7b6834f19cdb4881cfe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX89G2528590.