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 0x75d6da7f2730d83bf52c661ac2c0a3a8d7179293196ed1786fcc189e1da47ede. 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/9f97f8aa-1df8-4aa8-9698-5e3dc43d7a00.json and https://artists.proofprofile.net/proofs/artist/9f97f8aa-1df8-4aa8-9698-5e3dc43d7a00.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 0x55f63199f8aba4ba73fa430adda5f5059aa96a6bb297c854bce6babd9a4a2e57. 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/QZNJX2388700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7be5a2707b350ec9ee280edfd8d78b142354da95d08880297383eb32869668d. 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/QMFMF2346212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0145157a46e157000c4517f2a70cb10c14c97717f022461bc9940eab2f5483b6. 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/CLA1D2300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222e2ddf36be03e24061bd61fc3f4eb28a85a68728ae90aa179577329e095158. 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/QMFME2336786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e9994559650a27f59087fa8d6e6d4342a4fbdcb76ca18a0c6d73e6a6346936. 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/QZTVM2394196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba3d0f991fdc0bc4f460bde384af6d98edde2c5a3bb4eb669b7c860ef024d50. 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/CLA1D2300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13ff3e5cc90550f5f1a0ffec5f4d405c09369d6004bb183bf35eee77f50c3ac. 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/CLA1D2300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cbda19444e46955fdd577df061a86b449ae284a413de05f4a27b31951123c3. 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/CLA1D2300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8e930a170a49c40eccb52593612fbae86e84f17f3de61d1cea3de68ff44d36. 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/CLA1D2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba3d0f991fdc0bc4f460bde384af6d98edde2c5a3bb4eb669b7c860ef024d50. 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/CLA1D2300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1575195c2a15c5c9e25df4aa50abf327475929795d73295d2e4b0f5641351802. 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/CLA1D2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ede6ba427f6a555c76908247a2ed34bd6c4ac895501d004d8bb45222bf65ec1. 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/QZNJY2304864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b9ace9e0aefa05ce8152b81e10a7ae71ac54273664f5d0cd31456b12edaea8. 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/BK4DA2311806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f237790d4f884cbab546485f941e1d9555295f41d1b3fc118a521ff4ce8b3d. 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/CLA1D2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31cd1cb8accf878d636f0843af4e14ce8f68a622d8ffb951590044c4944bf6d. 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/QZNJW2341825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaafdeb56c5732d6c2b3394f2ba80c1b10814ce3a7dc14300d796cec3a7765bf. 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/QZNJV2325570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b31b95b114415d242be59aa222313c60735867f608295f08899463f0b7fbe2a. 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/CLA1D2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bd5277ec43c7aa7ad4e6dbbc89f606e2e7eb7a99d701ddddf2bcaf08b88f2c. 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/CLEM42100919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7764356ac2a7cb3010e9c34c5d77a8c8bf0b8199dbb1f208f4862e1f114661. 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/CLA1D2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7cc6ead91ddd32826a2f6bdc72ab8f7e7158fca032044f00844f94f4af6491. 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/CLA1D2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6077323cf0cde8634dc5d31be72dff6ce97ed92acbc96fa033235479f7667b0. 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/QZMZ92304887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ae93b286f4031df553b25f27a352451c4277fbb5e8d4e4e1c8a2a0b4a18e68. 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/QM4TW2380996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448008c82d2417e1a967870f5cf09bee767b43f599d1620f50c406cabd13c328. 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/CLA1D2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758137ba8359584a395e8593ea91a63214b88bbd8dd4a547d56930781920db85. 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/CLA1D2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fd7ef3bebdc2ccac70b4912ddea28b3fd37451e1ae524725cacb78e1d52844. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZL382349694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458183c90829aa33328c23988d44d5d86c8a5ee51ec6fbfe43c3f75e6af0b1e3. 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/CLA1D2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bab87069e0a866f0c56b0abac32edde7201bc0929c3cd8866935131cb57650. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZW9M2259278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeabd0748cb214df4bf734bbef01cb7cc3bdf9b8a7b4285d3d030b1fc263033. 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/CLA1D2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4604c9472a7c01250434d89f3b093bc65c08fb198724ca67acd7d6cf26167a38. 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/CLA1D2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1951ad346e8f756c26583fd582edd6218c4a913c41e7804708ab21f3b60a2bd3. 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/USL4R2169467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02e45ee76ca84420ad42263f14d1767b5075fc14110359cecee6514256453b1. 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/USL4R2160493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b4738a505c1f3eadeb5d8971cd0352cd12042c0524c93b4f868e53800dbdfd. 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/USL4R2160467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3873982f1c38b4d596874b540d5a260d8724764536a700c60bd51b328ed9c962. 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/CLA1D2300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851938707439e5c6d3d91c2cf9cf5e6718a6c2c08608b007ac1ee86130630294. 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/CLA1D2400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecedda3a6f74a26e35b08e2e17209c1f059c5a23c9da71597979eb18aa3fdf83. 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/QM4TX2506142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc3bafa2952d2b3b697afbbe7a22ef80c88e6dc437e864bb516ddc65ac73816. 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/QM4TX2506237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e24fcad1516513a7b35a305e4e031b1341b07626d3d24edabc905a0eab04f6. 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/QM4TX2506241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d12e47986914fe0fe10d5b827edceffc364e4543b1815b0848f57ef75102c7. 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/CLA1D2500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b7fd4ead2089ea6ea652f6ace4cd8ec25629e1842a23985c87642f4322b680. 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/QMFMF2334329.
Despidiendo la Primavera Con Música Latina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e6ea452a7a4346315cdd2db405a7ec92824fc3b9373bc08129963697c8a552. 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/CLA1D2400032.