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 0x475e5f73b00976f7f1c0d28a4179d49c122291fa6bdd5ad7ee8f12b6ba2aa12a. 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/172f3b5b-e82f-48cb-ab3d-8cc62ea57196.json and https://artists.proofprofile.net/proofs/artist/172f3b5b-e82f-48cb-ab3d-8cc62ea57196.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 0x5b0f9df1c67802a71f0eead82c71f7e92425944e985d39a3a20f37eff8c14377. 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/IT4U12300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dabb29d2633c30b2c2e9f9645c93e3c3a53caecf71e97c9df34d64a791906d7. 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/IT4U12300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef537c706d1dace67c0bcc7713c4dd85040608b7bf92ba415f7fe148828cd88. 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/IT4U12300050.
LE BAMBINE FANNO OH (feat. Nerissima Serpe, ANNA, Papa V, Artie 5ive)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5765be1c2e57e12eca6d738ab2c5ed528ef31e7dc33b32e88be380e6d9ba975b. 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/IT4U12300051.
HORSE DANCE (feat. Yung Snapp, DrefGold, Side Baby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7a9422363aa06cd56fcd4d3b3f6a276cbbed35529becb8973815866e96ef56. 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/IT4U12300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3dfc364c7a4bf76ab1a7a22ee52bd3772b93be11a079d45cb20e6f62de7782. 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/IT4U12300053.
CLAP CLAP (feat. Artie 5ive, Niky Savage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9186845418fa1b20df525c2996d6e3dbbd83a306e81646fdcaa5ab7f11f168de. 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/IT4U12300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b84a3d2e596ab60aabd88dcb8d11178eed2703761fd1bac2ea77251e3d075b. 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/IT4U12300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98877e2a14351fbf1f03c4a88d4d653d802af468c9cbdc198644548ba396f2f. 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/IT4U12300055.
CHOSEN ONE (feat. Lito, Astro, Artie 5ive)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66266603c30b3fe3607e73c6b02522be135156512db0c1fa6ac69dadf8517181. 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/IT4U12300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad9e6f9dc1d9d95ad1d1d9509659c69a6612317b490274de83c0f86a6d547d9. 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/IT4U12300057.
10 CHIAMATE PERSE (feat. Low-Red, Luchetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1ed4aa9ec34583183546372cd291ceff4609dca24a83d355f0fd931228a6fd. 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/IT4U12300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a9fd28fe7c842d2358293721048447a71e609e9622002dacb1b905098ef20e. 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/IT4U12300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d63ffaa73e0c4d7ea6eab7f850b2d20f80415513276546c77ca5734a1f37f3. 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/IT4U12300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b870a177495f83ed8c1c7fd6b75451b8a81f0f732d4051ad3b636ba330a461. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITLP62300026.
MAI STATO REGOLARE (feat. Astro, Tony Boy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d257df71e9a8c3576c2995acc6b29aa45a29d522eddbb05b91892fdf2a74d5. 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/IT4U12400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0f9df1c67802a71f0eead82c71f7e92425944e985d39a3a20f37eff8c14377. 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/IT4U12300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990cc42f08d632f7c6b4a69ef5566aba9b6588f36c8323b911ed14522e5c346a. 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/IT4U12400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dabb29d2633c30b2c2e9f9645c93e3c3a53caecf71e97c9df34d64a791906d7. 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/IT4U12300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef537c706d1dace67c0bcc7713c4dd85040608b7bf92ba415f7fe148828cd88. 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/IT4U12300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ffc6a996d0c0d78001b20b1e2ced7f718c67774c106d6de5b4f59f87c5e764. 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/IT4U12400022.
1234 POSSE (feat. Faneto, Artie 5ive, Astro, Niky Savage, Lito, Low-Red, Kid Yugi, RRARI DAL TACCO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab5b05b0b4eda608e1991ac31b1f39c3e914337c0cd2477eee4f746758b32af. 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/IT4U12400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5765be1c2e57e12eca6d738ab2c5ed528ef31e7dc33b32e88be380e6d9ba975b. 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/IT4U12300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7a9422363aa06cd56fcd4d3b3f6a276cbbed35529becb8973815866e96ef56. 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/IT4U12300052.
DAL CONFINE (feat. Rhove, Nerissima Serpe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e805fe2ee4518376272ecc4c9a167dd65bd2efc3843a20150db31cbc72da47. 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/IT4U12400024.
MARMOCCHIO (feat. Papa V, Jake La Furia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec5a501d9d5e1aa56c9c74af8035dbd7c582d99a94a146231cf13352b6c1e45. 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/IT4U12400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9186845418fa1b20df525c2996d6e3dbbd83a306e81646fdcaa5ab7f11f168de. 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/IT4U12300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b84a3d2e596ab60aabd88dcb8d11178eed2703761fd1bac2ea77251e3d075b. 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/IT4U12300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98877e2a14351fbf1f03c4a88d4d653d802af468c9cbdc198644548ba396f2f. 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/IT4U12300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66266603c30b3fe3607e73c6b02522be135156512db0c1fa6ac69dadf8517181. 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/IT4U12300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1ed4aa9ec34583183546372cd291ceff4609dca24a83d355f0fd931228a6fd. 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/IT4U12300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865c975df03caa7646762a72be868e6740185ebf458968628b5a59c74c2a11bd. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/ITLP62400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c3ef55ed0fde839179cbe667025e844c2dbfed1659325e1f7d14c57268ef66. 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/ITLP62400019.
CLAP CLAP (feat. Artie 5ive & Niky Savage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9186845418fa1b20df525c2996d6e3dbbd83a306e81646fdcaa5ab7f11f168de. 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/IT4U12300054.