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 0x86005a4f235a9e4305a716c2be10b48d0393f87b2a3cb865d8872659feec6aa6. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56df8b1b-0842-4fb7-bedd-fc63f76badae.json and https://artists.proofprofile.net/proofs/artist/56df8b1b-0842-4fb7-bedd-fc63f76badae.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 0x0c11b57c6c86f4f508c0146b7a220372374dc2b028ef93b2ff8e9ff2e8a60a47. 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/QM7282048496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aae2b29205bac506cbd2d5b55cfd771461341c5de9f53f2d0f7ed67f5d4fea0. 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/QM7282048497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e36737e7da1409de0de5f6e153651bd8f0c05ac52e34c2ba2cb5c2e9e0eb89. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QM7282048494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721db37e990615e1fc9a6299eba79627d2c845d5208bf121e159fd2f1acbe882. 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/QM7282048500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63654d16fcde6f4d32e1711835a087238a0ad0b83e8d9559e5c426cd0fd5795a. 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/QM7282048495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3b675c1a7f6103908938253d9124b824c0111a5a338d5311660684a755db1d. 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/QM7282048502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1467e419b84b0eabc175049596a1a5df80a251c2e729bb7535f1bcc3fab401e. 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/QM7282048499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a8ad863f4ffd9cf616e5438e976cbcee0ededc47485013b7190604644a04a7. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QM7282048493.
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 0xd73362d7ae1ff6c64dcc1dd69e23ce4b8a0293f3c38d28611007b4365c2b2489. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QM7282048501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dff9d835a777737c6f3e0623072917235d92a8c1260acc8ac27b9af355d93b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QM7282048498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d156a84d166d24bb56a39667bb7c1b65ecec43f31c5f6c1677d0008b7e91f8. 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/QMDA61889800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fcd029d1bc3290ac79e7fe5b4239054e7a9d7230fd32c4655a9ef4dc31265c. 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/QMDA61889801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb08aa483425082fcde492c6301c5d9827eac2c088d4c31bcda3758ea4cad06b. 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/QMDA61889802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42ee7837b8d693634553d2a78efcec6e32bfd019214b30950a118953cad5442. 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/QMDA61889805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b37c63b442645a3152ade13dec90785d3c2e832e03177472461682689b7ad8b. 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/QMDA61889796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8df0c37937754e5565e84fb175784a39ee963a95c010d01e8335b754f30636a. 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/QMDA61889797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ac6ce0e45326a3b007121356bca18f3cab5201423a2a373c01e7eef69065bc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMDA61889798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8c956d349382ec8ebb097519cf10becb51047a7d4ab9e9afea1cef49b85f1b. 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/QMDA61889799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4a045a3a1c335d43e875f4ba76f60c50abe024cfa7c0fb743f18ac0034eea6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMDA61889803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536d1c42b41c3cb038277b640392e82fcd557a5885610c10813b3e9f2014d2ac. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QMDA61889804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e859a15117fb29239aceeedc545764eba0ebcaf1809ee099d70ff454488305. 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/QM6MZ1509200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c453afadd8e05d14154105e287fb9a0e04d68cb8ab1fea3a84c7282f38fa07. 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/QM6MZ1509201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc706bdbc7e6942dd8459a2490bd585a1ffb5db2efbdac06cecfec44b26a331bf. 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/QM6MZ1509207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ac123c52c43b19844cea18817accc8718f7ef23a941543184cffddceaa2d97. 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/QM6MZ1509202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d372e4e018c589e704fa131a1003b8348bea268b6e529fc907518fa7f781b9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QM6MZ1509204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff792f379d286fe0137693220c1efc1a987438f678bea0eb4714f2cabe013c54. 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/QMA5K1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b2feacc2fb94cf8ebcd6438027f15e725cb67a73cd969a43b3682df2113051. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMA5K1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6a7ef6e7016794dc6773da598e83ded923643acb82655c37415c1cce8b0b6f. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/QMA5K1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ba3e9ef40241a78e6a0f44316285784b9cc8ff237950c81ac3a73ac762c94c. 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/QMA5K1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85914e775c4e59500e976f7de348400ef4f40b5bbf0ddabc69e66c946b6fb6d. 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/QMA5K1400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f34d3b0f344108cb353d958aa305c39af9af864e61c2c4b8763f5ac1a6cf5f4. 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/QMA5K1400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cd42582131b7f690eb9c04d2aba13b8166946fd02e0ca96b5a6f78ce024abe. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QMA5K1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9411a0a232962aa83f161d83c8c89125f46e90b11b22315e24cb3491cf8d9a7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMA5K1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73063b4e2e5445fd84080bc6cbf4ee848f5e5ab585a267267046c8432a7bf29. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QMA5K1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4b4bfab53eea21733156b48add53a24eb2111b2d171fe35d3a8ea87f43d165. 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/QMA5K1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83414e52ee678077df5f63cf63e5b76122214637ef39dc147e6991ea142f6402. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/QMA5K1400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bf117902fda0a6fd64d7e487803a303aa6b25aa9b1829262e9561efda88ac7. 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/USQY51293364.
Double Dealing Baby / Alene, Sweet Little Texas Queen