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 0x429184e41ed06271bae05035976dd007a5ef35cfb422a0c14967c3e95ba1610f. 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/6f6ce567-470a-4df2-9b37-b5a6c5d7d89d.json and https://artists.proofprofile.net/proofs/artist/6f6ce567-470a-4df2-9b37-b5a6c5d7d89d.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 0x4175efbd7177b015335818785c32518a2c172dc7fdb691a73132edba4246a6f5. 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/ITS782300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41258caedd7f992f8d1a6c28ff606cc5109a595f3909d8afbe204d3d97fe1be9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITS782300586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3be843371426807e05638d3791c67f96a2f9afaff2c468dcae08980e3c87381. 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/ITS782300587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636df308f009358b2dccd1164d4f160099547b9c95b4652409adf670fcf93c55. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITS782300585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8912462734cba02cc6a567bb7947a94a4c348a881aef61e108d3f15ab41eb48c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITS782300591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3281cd996423b6180e249357c12aef1e95d0aba5381fb266723c42d95ac4cf52. 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/ITS781306114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9f90fbef7814b836d4557d3b4a6e1364cd36bbae281e35f7911dbbb16cfbdd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITS781306115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcc02fb6fd86aeff45c1650a8ef942e9666beb44a52a46ba788b4e6620c0289. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/ITS781306126.
L'Arca di Giada - La Leggenda delle Terre Incantate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654aa9319b93455fc21dde20529b9338ba8eb207f4e7eaa9159ea70131fd726d. 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/ITS782402021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b04da51b8780dddb57f6ae7699f96be0bf236c13dfb2c6200778178f3f8232. 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/ITS782402019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a1c96e2d37593f9dacfd316586426c3fe3c39de7becb419acd583a131eb572. 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/ITS782402018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8912462734cba02cc6a567bb7947a94a4c348a881aef61e108d3f15ab41eb48c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITS782300591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52f100b036977966992d2f59ad4bd449c1a23682c08e28e55f7c374a3944008. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITS782300589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3be843371426807e05638d3791c67f96a2f9afaff2c468dcae08980e3c87381. 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/ITS782300587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41258caedd7f992f8d1a6c28ff606cc5109a595f3909d8afbe204d3d97fe1be9. 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/ITS782300586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636df308f009358b2dccd1164d4f160099547b9c95b4652409adf670fcf93c55. 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/ITS782300585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab147f36f0e99c57e22c2d63f900ae1dbd51b81ae38bd98d1f0b551ba77c2f4c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITS782300393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e7d2142368608d1716c8a45798c4d878d3c35c29ed03b4e33717ba42767711. 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/ITS782300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679bb49bc83b0bd4306117e8776e6fb575fdf91dcac0726003a3ce72d246e21a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITS782300344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3df8f238b54b527a78a7788e1eaf4eb3bc86066cce9ab8cc77a4364d1a62577. 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/ITS782300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53dde8ec93319992f49fa94a4fa813a4854d12e9eee41cf088144ccff8d8243. 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/ITS782300246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23081f4f9ff1f1a1ad05188ab42ad9fd0de3242f7483bbf317922603eb5b05a2. 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/ITS782300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b18be95c3dcc0bd912bf5151d7a3f6372977aa802e77f8ed41e593fe82900b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITS782300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46061ee4bef3a2834f07d82cd924a4cde4639a171a29336b2e4daf11238ed20. 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/ITS782300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c9cdcf489bfa93cd44feb38a8ac61dfbd962073b3b1b255ec32e788b08c50d. 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/ITS782300029.