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 0x75518099f6e1a67eddf6b7a82f31c93ec35b6082d17e21e2f2a1529e32406b44. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4a69c15-aac5-4e03-b234-869c000a08c7.json and https://artists.proofprofile.net/proofs/artist/d4a69c15-aac5-4e03-b234-869c000a08c7.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 0xe80c8f890d2d41b277877e16db8ca4dbb411782a97e9dab24b5e1ba6d8efc7bc. 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/SE5752192331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218decbe0aaea2fcc233ddfcfe424834640ede59bdad32336714e0dd7e5a6723. 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/SE6HN2274594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b410bdeffe9496bac14bc62299463ae71dfe05857e08062223d443140c0c11. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:50:21Z), 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/SE6HN2274595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8154c3441485a21a3753421e15b153241085a6d85463b0a3e22c1140d4378894. 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/SE6HN2274596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22366a6bea4530938e97b882e95e2f48f4b93ccc0222d83c35d538f7c9850fce. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/SE6HN2274597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0069c2a419cd01c7e0a3759452092f7b10a8e8916f179441dd54a0e09e51e775. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:22Z), 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/SE6HN2274598.
Skaði's Return - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648fb015566b847d93806660d8a238b1de2b2ac2296adbe52de9bcbfc66fa770. 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/SE6HN2274600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f2ffabdfe55270de1cf3f6a12909e3dc33cce0acfe5571789a1af672f75d9a. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/SE6HN2274603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5104ad5bc9249bf3e9170f8f594af00c3acf97ee212908f702e0e4cf0eef28a7. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:12:32Z), 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/SE6HN2274604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd503cdd09e746052b0490697e1bda90e2937a85f81b22f88aa65da5802aabd0c. 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/SE6XX2268506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9733cb0c9cd8c78dfbc63a48fc96e6b6a4c67faf555ed4ba1340a2800c6bf7c7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/SE6XW2266340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd503cdd09e746052b0490697e1bda90e2937a85f81b22f88aa65da5802aabd0c. 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/SE6XX2268506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c6425a8d842410264cd25ce2c22b1aa902cb697af24e8d911fa1c894c7eaf1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE62M2236377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d86d0a6d36f31dbac6fb984d40810ff5fecd842d42152b4881a57986c3848a. 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/SE62M2236378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a357c24b65263950df9ae5188c2337fa5d84d97b09e0eae5d49ee7485d2d5d. 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/SE62M2236379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5edd03945d68b4f1bc95c838da094380c84d9b2692c225b193a8ffa7dae7283. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE6XW2241971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299b9fd77486858c5e8de54abb386228bdb1ea110f974a8caf4e2dcb5afed3d5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SE62M2236380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360084b11fa2ea934e34dd6fb875009cef40a492a69d556546b9b7e8de038c23. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/SE5BU2324264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01c00558b44deade7fc52925365e2ebd1050984cd4834934e265614ae6ab7d4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE5BU2344512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7b486d3d6bf31a5550eafd664f037ca12df5c7b29d97f7c63f4de0e65f8b14. 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/SE6I32386346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55479219ef0f92335ffc669e756f93126fff40864e4b0483e3c304aaaff98595. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:56:53Z), 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/SE6I32478827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc904c4c1f5b2799034ce7bb091365ad8edbcfb0265736dd5535b537f34378834. 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/SE5BU2488335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a7e4773f747fc7c74e7863879c3f53055adf16c7f46fa61095687835146a33. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SE5BU2539255.