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 0x9c5d0b4447765ebfcfa529973ecddbbf0ebd0cc91273ba96290ecced3e1ee6ff. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3e00d70-5974-4cac-adf3-16cd07ba1a5b.json and https://artists.proofprofile.net/proofs/artist/b3e00d70-5974-4cac-adf3-16cd07ba1a5b.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 0xa40d473116604f98e69e9e42e2866b899bc9f7dca32d32bc5c02ec750acc5753. 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/NO2DY2400238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345a0aef25d95d596034b7cbd59a142beb9bb58150241cbcccbc26d5ea58b0ee. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SELNA1400802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa7d51e606a539fb16e18a08f2ad735949fe745896a95ed90863f17342d1315. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QM7281840628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99336c0042d368347a57e7530f42912543cf0a513ac40fc8b6629e61eaaba922. 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/QM7281840634.
Fan jag hoppas det är kallt i helvetet inatt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf699be7ee2b0c4b522f19faadb2266914c1cf8d4214faabc0ab734af406cffd9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QM7281840635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0d0992ff5b27049fdb1de86fc6f01ba783ae41d2ed7fb02e35747c81ea34c5. 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/GBLFP1554864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a11c5447aa9391c8f1ea1dbae46cf4bd75e26c3ff704c47343c68b3883859f7. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/SEVVF1403801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331cdee8852e05ba7421c4315b007ce445cc6bfd7b44b6f7168c468bfe6781a5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEVVF1403802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb00ea1762c7cf3c09df995185d9581ec65df4b1624f1d5f70774a5e043ca90. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/SEVVF1403803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d55b8e387550d8baef76471098741ec1c2202301ec75a77de49fa01db927fd. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/SEVVF1403804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0551ef5068b3ac851070976eb967581f79a15817c9ef63ad403e1aab677b51b3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEVVF1403805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea955b4de471e80f45503edfc190a802633151ad3a97a5659301b2622b1aff2b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SEVVF1403806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6643c70a168c88f8f92fe3a8594c1ad6fd9a599ad78c641ede9a93e604c7e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEVVF1403807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2c3fe48374cd3f5f05155df55c6e3e39fe1331d1b93415f1d2367df9508a47. 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/SEVVF1403808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860205b8d0a09010a2a08c75f44b5deb2a3dc5835e0b530ccf5c120b66948389. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SEVVF1403809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98c374f094837dab5087b4b539dfc879c71270417c4ff0afea252f92523e584. 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/SEVVF1403810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f26745c2eba6e533ca172660f0a63e67c072acdaf58ececd37540b831369f54. 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/SEVVF1403813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f1e7dd90d53c7349c8c61dcbdb2fbd9c8ea210f2248cf474ac10b7a039b3a0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/SEVVF1403814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d300304f4fd1ca02013b4877ebfb8209b0f91570be563629769d4df3eb8087a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/SEVVF1403815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0eac9873b16dd2c205ba2e1b071281466be81d44316dccde647b237b4fcdccd. 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/SEVVF1403816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd914faa113d7d13fbf003e48671cff45e4dac2acf6bf329f0a0969ba0f8559f5. 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/SEVVF1403817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb576a1a51b19ae94e23590cc8fac998d6149fa45eb00acb096f82f84f1a5e8e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/SEYFX2000702.
In from the Cold - Antipole Ft Paris Alexander Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8573ca2a48df202500405827f4fe8fa08e1eacdd7d5eb54f909869f69f87a371. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/SEYFX2000802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a261c51507bb84ec81aa3ef37b6919163432c8c2f6df845d192928e37a42a1. 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/SEYFX2000804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c311ba2aa9175f46ce385f862d2750b2ea66642752c5993e6e4529d2d74e6f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/SEYFX2000807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c41eeba447f3bedfda7a177c2982af9b120d2a15fb379667c7c72b8302732d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEYFX2000810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0bf164af471d38aa860050cc78d98f7a858ff1f38eb5a404f890daf07a5372. 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/SEYFX2000811.