thumb|upright=1.3|Inuk hunter with harpoon in Kayak, Hudson Bay, thumb|upright=1.3|Unaaq , a harpoon used by Inuit, long, MHNT A harpoon is a long, spear-like projectile used in fishing, whaling, s
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 0x55800a0ed5f99b7f07e253cedfd1cf93800647bdd48bea62efeac346cc61d481. 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/013bbedd-bd7d-4d7e-8807-c55275fc108d.json and https://artists.proofprofile.net/proofs/artist/013bbedd-bd7d-4d7e-8807-c55275fc108d.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 0x3c5e6b97f33d74756991047d9cd1e6b37477050ecf1116022291bb587ab22f0c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUCN32000090.
I Still Feel You (feat. Jasmin Jade) [HOOPS Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c5c868a6bd8a04fb4f2d8cdd0d0292bdfe4b3379cc047870798b233b0adb26. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/AUCN32100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041a68eff016a00e618b003ec3de0348163bed80b5ccdd917c23f665833bdec2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AUCN32100201.
Supernova (Luca Debonaire's Omerta Remix)
Supernova (feat. Lauren L'aimant) [Remixes]
Deep in the Blue (Dj Kone & Marc Palacios Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0365e707f38b3f960114c28478bcefe6e859122e6b383c499c18e1e72d3606b1. 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/AUCN32200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430f4258dbf33e03088e7764c8d6ca7f5d557d8bfd486529e5a87c385ec020b3. 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/AUCN32200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454d415c3e30dd7bacdf9be194c2cbcd2bc1678e6ef6ff1615b9e73694dde898. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM6P42213062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768e2103b2dfffe2fbe9d6a295d15fc4296653a9496fe4202553f089577ac60c. 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/UKRPL1900376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcf118b38cbba6a8e6e14112e58012363691187d86012bc016890a7b00ea200. 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/US39N2301264.
Goodbye (feat. Stevie Appleton) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7454522f99d0ce52ebb45fe0245e2a4931fffbae582c549421ee1a51ebfdb21. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/UKRPL1900536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661938da5f34c4267115ef941eef01f7b94ceeb158be1d763d04171161775b32. 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/AUXN22491158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4096b3bea91344f9fb4cd1d67a06e73f77457393b2cb7cc1b63842a963a27d97. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/AUXN22493419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8eb6fe070d6994ba6bf7dfecbad5cf40fd33b98b01c8131f6a9c1f0f36e217. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/AUXN22493417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e773960012e95a7a5c5b35046cda641ea2cc180eac6f932e8b9a80a6db37e3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/AUXN22515646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a61c0cc14ac49d48736a866add1fe3433f57a156ffd2dacd36dcf302f5c32d5. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QMBZ92597850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45f4e76077d78907ccca8bcb2f4dc6e6b2eea20f21766e692d8cad8529f73a6. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/DECE72300755.
Toolroom Radio EP680 - Presented by Danny Rhys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcf118b38cbba6a8e6e14112e58012363691187d86012bc016890a7b00ea200. 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/US39N2301264.