thumb|Bellestar Bellestar () it is a small town in the municipality of Montferrer i Castellbò, in Alt Urgell, Catalonia. It lies to west of the small river Mare de Déu de la Trobada. It has a populati
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 0x7ae16c77428573526e30e9be3efd8e7f95833ca098532007ed9626065affecea. 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/7f9eae8b-443c-4b91-9b47-3efae63baa28.json and https://artists.proofprofile.net/proofs/artist/7f9eae8b-443c-4b91-9b47-3efae63baa28.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 0x2a39bd9e301ab7ff07a119b57e6b719ae098ad0779bcdd1da26cc5907ac5fa81. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARF410400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0f88f6c203d75e5458e1ec492702635b9b22319fcde19d9739ac5a6428b605. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/ARF410400229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de65d4371eef737d80557b46fc88e21d5590770f2451c2f8b186244727cb029. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ARF410400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0124102a866a3e165a2b8ee9e7bbe6a6863ad321f7ee86954e05e1abeed45655. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARF410400234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af2e6f4adf745821560a8460548ee6b54cb5e9afd464d349e0b302832bffcbf. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ARF410400236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcb31d4642b3e10d69ebb0698745ae8bbafd510233d0c06969cfc927a4ce61d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ARF412000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d5e08b594e25546ca225ad14bc5f885b9b232a0cefe611951bd532eabe07c9. 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/ARF411600327.
Vintage Café Vol. 3 - Lounge & Jazz Blends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ddae5589459fc0d20f3ee7c9c2ad5a6beddfdce61d4d055235ba158dbeb166. 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/ARF411000499.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ae06a3452cbd8000aba56b314bc69390927d151835d40fbef966a49bc8f667. 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/ARF411601099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a8f1eeaea16333d16dbb5e551cfc39f8415e1bd6299ada630ec244d5a21b74. 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/ARF411600131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cc68b08958daa3924f255e811bc874da262272ccf921faf77f07a50aa6e83c. 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/ARF411300003.
Vintage Café: Lounge & Jazz Blends (Special Selection), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59eb80f4a2fbe3dfa69a871e1a49d54d356d19cff3a513f2736a8fb6222ea394. 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/ARF410400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cc68b08958daa3924f255e811bc874da262272ccf921faf77f07a50aa6e83c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ARF411300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6aa96081c30708f3d5d14fe624f96ce2686f3694dbd59bdf4bf3b4e5871a16. 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/ARF411502590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88a5fd3b7489601eec47880c0e7890f4ba7e75fda130ce2efec4faee83b1d01. 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/ARF411001043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcb31d4642b3e10d69ebb0698745ae8bbafd510233d0c06969cfc927a4ce61d. 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/ARF412000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99653174c61a15c810af90cf66fe267d544a52dd748d23191da28f2ef26b06d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARF412300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c56ed79f2570a427312a3440cc676e33ada1d857f3586c0a0114b96e925b526. 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/ARF412400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59eb80f4a2fbe3dfa69a871e1a49d54d356d19cff3a513f2736a8fb6222ea394. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARF410400228.
Vintage Café: Lounge and Jazz Blends (Special Selection), Vol. 19
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84351a124beda35e49634cbe51e0df180dbed21cd9b491bd78d3ee073df43843. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARF412100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5be466f09791f9a02d2f39ddf9b6b19b8368642d5df02678370a28154bc5c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARF412100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523fe74b7a8ba90dded59472b3a47bc609e2646ef6c3dd23f4b26c9174f56b35. 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/ARF412100244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9fd9f4fcf574a8c9fd805b41d56fc233af952639b9b960944888c7d8cebc29. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARF412100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d88f300886b269a0ab23dbdca24478bb296be78758f367a02b7039bf8077f2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ARF412000199.
Can't Get You out of My Head - Nu Disco Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478cfa7b419fd668a6c7513978a93d3b26f9f3cc168278f8261db82662a346d6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARF412200188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3e877ab7f3cf493a9fd420aaa2f48b15e202e64b983ea1fb370a28e108956b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ARF411502248.