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 0xea309de108b213a373b8daba4b884d4c43f97da5c8b4e44c189a6dcf66f08c2d. 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/72dd967f-5832-4643-a5cf-8cccb56da89e.json and https://artists.proofprofile.net/proofs/artist/72dd967f-5832-4643-a5cf-8cccb56da89e.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 0xa338c2b135b14c84c85ea81d9304c11d53a8ef58e1ba269bfb5c620a5a6c66ca. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZHNA1942542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e46f7ed1ec0a4222bc239d1799a8de85cd0e1010fcddbc6dbdc88c7beed965. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBKPL2027343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb087c9cf2762fdfac6359b75a1877e11b6a8286729cae5ab41c5b10fbc01c94. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USA2P2117715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d52abbc2fd081a6cfa49b65b141753a523c6c250869a8c783bfff2430cc328. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKPL2031210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e440543a0f42f817e73f56a498d7b41c11caac772b41c9ba5989b74f9a41675. 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/GBKPL2149048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29a69d1b0a84add71921e8a31a42594b2a09a06109b44760407048ff17bad86. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/GBKPL2143826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73950e45f5a260133dd6733549209f24466dc5194502bade2fa8f9f51f09a2e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2P2122852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f8bd22830ba703a08117c3b2c9950ba5f9296cbac310efe17a6c11f049f98d. 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/USA2P2135485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56afe2aa473e9412e94fa4d5208df36090348fd400de3750b82b81ec62d896a7. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USA2P2139685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0634795d52ea7273373f4f952399a8984861bef3dc6838df398d4503116394e7. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USA2P2207719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a21574eea36fb168a56433beca078ca3ba4563dd6afdf8377b4d1d4ed3f53ec. 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/USA2P2212057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814fbc57fcc55bcbff11d539b5381a4f0af84e99451ee6a2a310cd17a7e99c7f. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/SE66I2200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bb058b4f1ffad7d81fa91b854f36abe7493d3b143178305a736de74cfec377. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE66I2200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdf7e9a943782cda76f8ab84cf6ea119ac5cf79706d92c69babadaf81c424d0. 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/SE66I2200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df04a73cf9e0750abd7c947807cfadb122ccf0e258215245c53703e5bb8a5bf. 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/SE66I2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3002bc5c86b309a35e6276267e016074b5cfd39a442bf4893347c2bafcd4cb5d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/SE66I2200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31f6c907a7add2f884628f6ac23afa38621e0452271a2c8ba0fd90e90963b9b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SE66I2200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907ec7b1fad8dc68e4d487b23c13963466f563dd5035245352a919342fa86805. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/SE66I2200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3afdbba057bf633890dd888d1ca5cb406fa858716f534fc98961f64d04aa48. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/SE66I2200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3002bc5c86b309a35e6276267e016074b5cfd39a442bf4893347c2bafcd4cb5d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE66I2200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f809bd5a39028aa70bd69406a085c09678f4455c715d7b88158faaad9ad082a. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/SE66I2200121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f024878d2ead0a92cc1dac442e61097c1c8ce6a2f4b736ad1f88b34a6bc328. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/SE66I2200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6823ace84b57651eb49d82f948e23dca69b6b0ac383784a28f06eb73cf062374. 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/SE66I2200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31d194b02fa1ddfd2abd95e82eaa00d264721afd5af9d22f8f7ea145777f22b. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/SE66I2200135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2132345f5a0f066a0d3759e92ea446d791af02492b33aee57219c30f0cdb35d3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/SE66I2200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05bee165b581cf0ebfa537390dbabd56e770b39ba5a87052aef188afbb2a96e. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/SE66I2200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9374e8b205299197d44c4d0c29ec72ff1f026e7b46c8a53a034e12e7dc49cb. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/SE66I2200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde88bc56121dc6194869d9128afd26e8a4b036c1e59578678e99d9c651fe0399. 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/SE66I2200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad1c41f33a86bc9c11bb0cad52d50653064fb43cb24f0750e6b9ef9d3a86c58. 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/US38Y2403877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08feeb03bbae300d4bf0cb8b3ca871543b13745381df25fc42426f87fbd2f624. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/US38Y2405333.
Intim Wipes (Jag Vill Ha Dig Här) [Sped Up]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf5f7cbcd7c357ecdd91064087692e6e2bd63d09115699563ecb272aad4ce8b. 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/US38Y2411547.