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 0x0a91fae94156fc5185c4deb804c30a09d00cbc783f9f163e6ac5a5e966976b02. 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/22557943-b32d-4566-9f24-197cc0ce2644.json and https://artists.proofprofile.net/proofs/artist/22557943-b32d-4566-9f24-197cc0ce2644.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 0xfb5792ac55654a10cd1182bfc3df7a5e2c23e4fecf0309a3a45772316ef46b91. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:42:57Z), 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/TCAEB1920900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5792ac55654a10cd1182bfc3df7a5e2c23e4fecf0309a3a45772316ef46b91. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCAEB1920900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77506b5cc6144a275c758b4c5285c6b7f203c6a2878957c3c9a36a80e06e4ea. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR9W12114314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab171fe8f0cbf1c442f007b9aa2fd4b6cb8bbf7b9c60790b3c404b30d22830b5. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:53:08Z), 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/FR9W12200827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab171fe8f0cbf1c442f007b9aa2fd4b6cb8bbf7b9c60790b3c404b30d22830b5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FR9W12200827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab171fe8f0cbf1c442f007b9aa2fd4b6cb8bbf7b9c60790b3c404b30d22830b5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR9W12200827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501108bf701e15284eaf7f1ac91087f3e77db16a435c735282783804ea21d093. 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/FR9W12014945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2ec84de1872dd7d33996a7d86936f773ac1b968509433e5956c8c65b3a3505. 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/FR9W12014946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14bd08a43c90e9f39c67d659e35dde2737cbaa713afe8bc7e61d165a2e53449. 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/FR9W12014947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b32bd9a1e19747f7becafa7a4970e56d595e91acfc5cfe251d98422f09853b2. 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/FR9W12014953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8ceebcbdf5c428a6ade71b8053968c00a4de018ad07087b2e7364e6175c3fe. 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/FR9W12014057.
World, Hold On (Children Of The Sky) - Paolo Ortelli & Degree and The Yellow Team Remix
World, Hold On (Children Of The Sky) [Paolo Ortelli & Degree and The Yellow Team Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ed9165570ee3197fc8e835d17a42f043e4f8aba11e592b5d10567a1a55ba50. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR6V80134769.
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 0xcb74b87f972267042b35a95d4c910f0b8e7b7236441c78eb3d5d65b85eeebd31. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR9W12014950.