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 0x247d4413f0d25f0460a83f6b9cc6ac192b8cc448e2d4abd38f0ccbf51de261f8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdc00f13-7a67-4809-94ba-57412e10df71.json and https://artists.proofprofile.net/proofs/artist/fdc00f13-7a67-4809-94ba-57412e10df71.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 0x7b2eb5437b77245a5465fe4f097e9e25aaa6441d1f26e90cf83c03853ff5f1af. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITZS71400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef689baad909e72432017b540c8e2c242e0f878ec6c2cfd322acc750424a597. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:33:06Z), 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/IT29Q1600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf30d472ea4989352213aaae8367b01497ef41b296a9b5d39bb76316f674e30c. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:27:45Z), 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/IT29Q1600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac77516f413183c641770fc2e6e26a9762511a132676fd076e23ee759d5deff. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/IT29Q1600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35ce11b983b7975fce82a9d257f97dbc9c06d26b40106cfc7dd5a15668f5ba4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/IT2HQ1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808f6c10675e0384219078db47918baa5a1f01377850cab6e60bfda228a4373e. 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/ITUM71801285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4340bfe4a9b07e97915b560d2871a276c7d0223ebb7ddc711aa78c4219ab016f. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ITUM71801292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8d1b5bf13768057123d811aeb009151ca1d903dff28e435c1ef3dfdaed7e3d. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ITUM71801294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7eccfdb9dd62248651b2145775ba693bcf77fdcba47f6cf7c83c188c3cc1078. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ITUM71900793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80161ea4912cba1fe21dd5cbe5fb313d0b1d8584c39ac6d18ca33378e12cb448. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:21:36Z), 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/ITUM72000713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1fccb10bf53c49fbe38dc9759d0b551b22d9a96d007c5047bb6fa2f4f98956. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:26:24Z), 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/ITUM72101306.
Affogo (outro) (feat. Clementino & Sissi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685da2a45ed389d929b03649b8e794b2e244094b7c1f0e6d6fd06bfd9c27ac0d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITUM72101308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3043ab12afa12f120fffc41939e5965b3987dead38366ab8c2225cb18207b0e8. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:50:19Z), 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/ITUM72101311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28a1743e7efc8268887aa19b23c8f0ab0bce171387567aac27a31e1900c0586. 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/ITUM72200932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a73d0ba353abad81311d3894f80f9cba97c2a8e51ae414c5cf97ad718584025. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US38Y2403911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb46d5fe7dc60d3c4850b470d1750f071491e03c1fee27220ddfca5b20245a76. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/US38Y2415316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d137eac024f6ca5924756c6a347c4e1e05754f76f9d3431092efd7e33f723d2. 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/US38Y2420894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11929c343cb5e533f6b32ee1d98826b307c906dde34e91ac3ee96285ed46c309. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US38Y2424071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2db50b71b95f301338296493a921b1ba700ed726d12f518ed5d78f21a7467c. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/US38Y2408806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a73d0ba353abad81311d3894f80f9cba97c2a8e51ae414c5cf97ad718584025. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US38Y2403911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11929c343cb5e533f6b32ee1d98826b307c906dde34e91ac3ee96285ed46c309. 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/US38Y2424071.
Giganti - Luglio (feat. Altea & Lauryyn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebd0fc0d20c44c95c31fbe76c584b884eaf0ba6b5942a561c6fe91e7d3ba06b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US38Y2408808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3745477338feaf84b885b023d44438b00f83a05474f922487d29d531867db62a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:39:33Z), 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/US38Y2407349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d137eac024f6ca5924756c6a347c4e1e05754f76f9d3431092efd7e33f723d2. 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/US38Y2420894.
Neverland (feat. Marïna, PSICOLOGI, Voodoo Kid & AINÉ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79ad7bfba52d18dded481253e91d7a06d1058623f09f63748b36caf31857854. 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/ITUM71900965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e7e913c250fa2fc071cbaa78e0bac846c8e0a845f9bffc0e9c4a2f58aad9cc. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/TCADS1872328.
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 0x03a4162fe342919688da83269c2b55fbb619db874b671c70d05bc2f3c1d4bcd7. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/ITZS71200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc475e19ff726340297260ada5ac58c5fd3cba8e188c89bbdc42f1ddeb7f98224. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ITZS71200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31faccd6ebbb7c85fbdd35f273e5b421d20eb0fc3f6ac10a37b3366b233d564. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITZS71200032.