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 0xee0f812b74262a9d92cb0439957942a52d5ab962b2b36fda8c29255322a6c71a. 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/659a814b-9e58-4d34-a88f-3ae4d58b827f.json and https://artists.proofprofile.net/proofs/artist/659a814b-9e58-4d34-a88f-3ae4d58b827f.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 0xead35226c936d539ec39bceeee940191a069c7e0088e537c1ba5f77b4a2d14d5. 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/NLZ8V1800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72659478b7375c1b7a3a55ce66124739765ca3cc6597781c876d8b961fa91197. 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/NLZ8V1800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fabb40a081a6215fa65e838027cf7b72c71f0f31c6a59ce9161251c5c6ab40. 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/GBARL2201832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502a5514623c8095c186a8be9546edf572704cfdf7787f919282057382a6f8be. 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/NLF712207555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e156deec5ac216518c876c196b07bc29f37400be859696251e5d7af8e4918f5. 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/ZZOPM2228364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70a265815739c1d8f95c1284b85185d1efeeda95d74246701ccb0d9c6b65b00. 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/GBARL2200346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380faeb93729483b96e2258dd18bfc4ed5cbb15f70f6b0258075dd124fdfa388. 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/FR2PA2300500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ed25140628d5ea51a07bdbd2d4dacc1d792dc776a5e7b97b71e254c09b139d. 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/GBPWR2000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d3e7b45f02fe62c8faed4b65666a109f19eddcecb34dd79ca4cbb2b84eafd7. 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/DGA072200876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea21b739284da10bdaeb7742dc5b22121fd0156ee61134fadbcec8689361af41. 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/FRX452446170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e79883a83f415f925afadda63fcc1d37e960e2877e70f89e49038cce6c05c9b. 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/DEUM72309850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d5951b190e06ae452dc3732f65623ffac8e9d975c319e4605895fdb69ef63c. 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/DEUM72308703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d5951b190e06ae452dc3732f65623ffac8e9d975c319e4605895fdb69ef63c. 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/DEUM72308703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170641bee0ce83aa9cc23544583c8c91b7517a235bd683b5b38d0753ff18cc72. 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/USUG12404184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4f7a0705b3d4f3d9e4366ddde32be3aeb9189561379c416d887f9cfd9e88af. 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/USUG12404946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd01dff68c3fdbadd05a2e9960e7d67454058c07bc29e5eab723ab80b4f00cb6. 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/USUG12404941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47ec0a85e824dd421c0bef66cfd122caef346e12cdad2192bd354e5844d10db. 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/USUG12404935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bf437e36f31f89c7a349db4d33137fa74d971d251935a79d49d8a1921347b5. 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/DGA052443687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfddc2959311bd3e83d8abf8723170890df0118816a2f2cf6a80c301e9903edf. 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/DGA082375002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c2c6626c0f7822ac84422038b35c81e1e92eecec03ff1254f6da4020f84745. 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/US39N2205153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbdda634f62a7dae3dbc3408c72f719ab76b9bbfd9e3e94b1cefb6aba2ef840. 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/GBCEN2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0070feb4b8f92c65162f6b293648bd4a3759566ae49fcf88af7033dd3d079db. 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/GBARL2001621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbfd6ef7d7f2fc75bbc31f3d64e610581142b5bef41a57602b96405f3c88fc5. 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/USUS12000383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052733088050de6eac4692def8430779a59de761bc9ace95df2bc29f60f92451. 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/GBW992000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e85d03f73921279abd3e3f290b0459a3d11293fb3ea845a542a1697f4a4e149. 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/GBW992000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba53078d8c31c849ebe08cae61ff7087458281ad6e8d10ba094506d7c014954b. 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/GBKPL2098076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664429a6a34ae43fc29a9a953573a1276768f9737818a8ada4c6b2ae2da7d684. 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/BEDX21900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f03c518c776a8ffdc917c97e73f6c111f1cf9861474ca073ae775074c96059. 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/GB2LD1900420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543031591d1863675544b9ae310934f03cabaa3db2e08637acade58f4570ac43. 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/GBPWR1900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dc1e6af58afab4ce3beca988bfb89090b79352097d5410ba4a65cce8f07ff7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBW991900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda91be4aca0f190d9d0c94ef1a0a897c35fb447eb699b5e4eb312ca8c0c4cff0. 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/GBW991800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0288f31d57e19ae40f4f4f9047a03dc1cb1511bd69539b0c044fe3a1a2922b3. 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/GBW991800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a14140378a92a65a3662e9186ca7faba9b957186d5463d309163798cf6914f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBW991700036.
Bad Blood - Mike Hawkins Afterhours Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ea902d06784a2d4237523afa87c3d0bab15a4acecfdafb7f13641bb1dc407f. 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/NLF711705332.
Dropping Like Flies RAPHAELLA + Zed Bias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282db111ac9d9be42984269a3a11358afe87cfad70de09a1503693da51177184. 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/GBW991500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bf25a512603c4370f85a0a74d944db73c94b167c59c6e07c1256cfb7aeb67e. 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/GBUM71803010.
Toast to Our Differences (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87eef671fa5d57a25bd73db84b7d63e0ff1c6fa5c68a70b8b6d46c5c4ba01b86. 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/GBAHS1800373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075c53abd3175a590335b552b7c5db43de1a3cf5df573d3c9ed251a0088adb8c. 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/GBPWR1620021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d550d3e2071b787b55c8be3d6216a862d22f73b48b80c3c688d8c74d4ec88cf. 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/GBARL1600730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d550d3e2071b787b55c8be3d6216a862d22f73b48b80c3c688d8c74d4ec88cf. 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/GBARL1600730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd7811561532c665d80bd9dc029d4e6db01bffaa65f15872644fce82cf0825a. 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/GBARL1901144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd7811561532c665d80bd9dc029d4e6db01bffaa65f15872644fce82cf0825a. 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/GBARL1901144.