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 0x67873a67b5f644717826e9e0b29353698682ebfa1393bf435038a05d81225949. 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/322a9cb8-3463-4408-b766-ba7197142af1.json and https://artists.proofprofile.net/proofs/artist/322a9cb8-3463-4408-b766-ba7197142af1.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 0xd850420d28df97e8cde573e807384d5f4fed3ad9b190f492082baa5a553059aa. 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/FIBAR1200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3a9d64f6e376374d873a819b8c95cca5814a9855d54532c2f0ab411aae7ea0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FIBAR1200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6582efb15749b18c42ba4827c49a471c8ce7a0584c2ca0a7f51004d360a0fd3a. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/FIBAR1200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3be5d79df253e7ea891d1cb68d11b2f41672e5a0f3f3f20345c078adaa634ff. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FIBAR1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc223b158ae3be9934c8353945968fd7995760b30ec9ac92839411f93cb3c9aca. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIBAR1200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4b37e714f2616ed859a12ad078a17a954b690825361fe59e70f1a31c8930fa. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FIBAR1200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd67a386251448959b09092f4a96cf7975e2483c01fd52d20f7f0a15d6751eda. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/FIBAR1200024.
Jos jotain yrittää (Harva meistä on rautaa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb3fbc5ff9439fb2d099d8977001fbba7622c9adfa9e6cd6a93e1b36c5e3c0f. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FIBAR1200025.
Sata kesää, tuhat yötä (Boogie Woogie Dancin' Shoes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c2a34b17edd4ca5486408cb3c97f42bdc7017694ee8b02472d48012e0b66c3. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/FIBAR1400173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a77b3099b5e87b30bb261d384160b9b4f4ffb39811be1138a3e8d20ee394863. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FIBAR1400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081dceff7da1db9b956312244191eac3f3cd090345e97a16c87eb1f09240bf0a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FIBAR1400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978cb9e12f06d3425e5ddb2ecd5ae4d74ddf59973376e29be748e7bb91d57651. 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/FIBAR1400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7769d6ed78036b12a1970cb214be6d37b3b7bfd6201a6a3973c4224bf5f35f74. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FIBAR1400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa412dddbaee430ee2801ca4e817f490dc797517104bd81b1e37fb91375a26307. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FIUP82000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937cbe57066c09518da2469a0fe6b39ab24c1c645f45e0a75cd415fd0fee5f24. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FIUP82000004.
Enkeleitä yövuorossa (Vain elämää kausi 11)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1e6387a1ecc6efdce3d23a3c0bfd4472b7f4229f90c6030778cbfe27f8b913. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FIUP82000006.
Härkäinen myrkynkeittäjä (Vain elämää kausi 11)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c5d5ca5cfde80418695650a41a2ffeaf6d8bedd2afa25613f359627f949c53. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FIUP82000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd113604114acee7425a7bf4a3fd66bc26a9f54ba9a65150e9819f7c3c358a4. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FIUP82000009.
Joulu Piritalossa (Vain elämää kausi 11)
Joulu piritalossa (Vain elämää kausi 11)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251ed76c957e5a7234c3d31f9f707366e98c6cc42c455c2dde22c6d20ebe746d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FIUP82000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251ed76c957e5a7234c3d31f9f707366e98c6cc42c455c2dde22c6d20ebe746d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/FIUP82000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1e6387a1ecc6efdce3d23a3c0bfd4472b7f4229f90c6030778cbfe27f8b913. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/FIUP82000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390c425926737ce12fbbe5f4ff69dd42bd675fc36d1364c07d25d6238d31bf23. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FIUP82000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa412dddbaee430ee2801ca4e817f490dc797517104bd81b1e37fb91375a26307. 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/FIUP82000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2addf341fd22a95b33c1a2e2527a6c8df65ef0eb340d68975370a0c139c90883. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FIUP82500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b116a710eb1193eee8ccd19c9104afec71c1f234b32ab88a525d2bda8766bd8. 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/DED831801731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a084ace12cba62707ca688bda88ab5ac541c027035691fdd41183f947b60508. 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/FIRHM2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4483610c82eea1f0d17756ad043308b4204b6094fa2929eb4a086a33e434630d. 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/FIRMX1500015.