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 0x01b15061b6822c3faf661e2d7750297c0a05ac2dcbf9ec71cf31cb0dd9712e1d. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6679610e-3990-446e-8a88-77fc5938f615.json and https://artists.proofprofile.net/proofs/artist/6679610e-3990-446e-8a88-77fc5938f615.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Agua Bendita (prod. VEEXSS6) (feat. Fenòmeno)
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 0xf1915ea0fd0544bbdae7c9ba0e2cd4da761861c1c81134ea32618b61d3ecf6e0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAFW2123377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95097031aaa0ed0cf6309c63755abee947896d25c6f518197bdab503bb3eb08e. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCAFZ2281412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70811d2ef5257953c35374e91d2724c424ba8d410a46d2195543b6ffcc77706b. 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/TCAFZ2281452.
Corazon y Mente Compilation Vol. 1 - Eredità
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82e463ea5748120258987772f5c8bf4b8a7068a58003ba6d5f8eeb5b1f3e9a3. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/TCAGU2321575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350391cab738182383bdb190a4cc442debcd8dd41254e74a16330f0bbc0f88fd. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/TCAGU2321600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5793b9a4af0518c296fd280b7b9479ccb31ef41d5ee338a08cee271415fed1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAGU2321606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd35999c8afa2747d46e75ea350a7f87a203cb93d9a7ec0ff149ad6cfd0e9ed. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAGU2321609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c508478470e09e8e6dfcbb434bfdf4a61bff7b8d619433e0542455a2f7a579c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:46:04Z), 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/TCAJH2574303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7d6318999e484ccea88b4fe83b958900014683c91982e855d3463ed4b3e23b. 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/IT7LD2401197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfb557a3482da5e61576a780d16ca8f6d21b0fad0aea6631c5ed4e1ceec0db1. 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/ITCV32411910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0313f31a4322288152889cb8eccc246a2b3734eb1892faefbb97d321ba085476. 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/ITR0H2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41276a7be84c0851e798b5c29824c5a63548a6abf9d38cee8f01ce457837e557. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ITK192300232.
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 0xd7ed8548440228f3030a0554d91394480877ba06eb6e6b2432b5f42fb0c7b8ba. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/SE6XX2324326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eb25880d21e9336adbfaa4c688d41323f2955e0aebd2c4bcea7781d6659e4a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/IT7LD2400580.