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 0xdfd5f843edeb91a1c08e69f86a51622babc95fe25ab8bbda3cee04a3b7170dd2. 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/db33e4fa-e048-4fe9-bb1f-e5e7c50fa2df.json and https://artists.proofprofile.net/proofs/artist/db33e4fa-e048-4fe9-bb1f-e5e7c50fa2df.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 0xb5ce4b3c182b6121fa9028cc9682a6b8f9b49845ad2506da71efe58a3cc7d978. 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/USLZJ2487320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c1ad786e84c747067354534f976c9e2cc9f285dec7db933691fac485c7055e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ2487323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9046c8a97a87c92a6978ca66b06715885c5f7d9aabe3e9efdb56a88f2b7dacf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZS632112750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024ef3e4cef904962c0432630197352858aeb43cafeda02c5def8f1a5d83a5a1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ2487332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83af5b18931e4cce6514861b01540ec11b5f980c27dab38fe7e47f8f0c6e3fdb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ2487334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e899a6ff84873f81aeef44ec32d70d62d520ea147c90965ea78335a889fc03e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ2487335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd66c607344f5c5c61b0ec56fdcc746982bc2a8ab70a748dd988a372d44afca3. 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/USDY42085597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4cf1f5a885ebbeef5a1b6aafae7270821195726df0bfc798835de85b2f8026. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM22024066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31de401c84c532eb5869d4870215dd5b41e803e660d91612eae85be1b0334967. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-21T19:04:57Z), 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/QZGWX2036695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4913738685f669b5b9dccf286eb2e1d18d40781f728e16dfb2ca10390bb9b2ba. 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/USHM92079511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4913738685f669b5b9dccf286eb2e1d18d40781f728e16dfb2ca10390bb9b2ba. 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/USHM92079511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4cf1f5a885ebbeef5a1b6aafae7270821195726df0bfc798835de85b2f8026. 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/USHM22024066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15f183a1b3b93778279b715a5f823aee38905ad226171cfc55025c99d4fc099. 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/USHM21941268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d76e555700987f1da93ffaeda3d6fc9516c646e7113ce5aa6afc199e7861e1b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM21941269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1215a06f28a7b67cad8ab9dc37528ad9ff3a92fcbc7b2e7dcb2f0d373a846a5e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM21941272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc259a71bbfd509fae24cc494f68ab1a9e978772f5b4ad00b3be5c96ddb8f8dfc. 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/QMPKX1703774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62e8b7329854796f4c41e81c268d717189a43e8b1269550c41471eda1cbd3c7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UKQNV2000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62e8b7329854796f4c41e81c268d717189a43e8b1269550c41471eda1cbd3c7. 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/UKQNV2000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62e8b7329854796f4c41e81c268d717189a43e8b1269550c41471eda1cbd3c7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKQNV2000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4331b639f17f84c74d19735b0d26a7c147a3129d640e496329bdf50680262d1a. 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/UKQNV2100033.
Sine From Above (with Elton John) - Chester Lockhart, Mood Killer & Lil Texas Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c062ced8546db133ec7d9da4ed20671260ec238734ea1fcc6136440ee922c4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM72116154.