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 0x28f19f0230abc02fa39e5c26ca142678a19db0298f7ed696572c76392e95874e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/231604ff-db92-424d-8fcb-1a514bdaafad.json and https://artists.proofprofile.net/proofs/artist/231604ff-db92-424d-8fcb-1a514bdaafad.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 0x64052207212e05ec64cb51d529cf345848fb5968617de3d816d340823e3632ba. 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/MYVM12400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a47e2c5f3c17e3e1147ea2d312330f095e7a3ef7f5ea78d205dafb2479ad04a. 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/MYVM12400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93adbb194ca9309195558f180f0fb1a126dd80f5538e1851995ef1df2e95aff. 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/MYVM12400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacee6b7d1ac2916a7162f37d916826822228afbf7c05586bc8f31cad91958e3. 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/MYVM12000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fb7ecffb578f721e4a1916b5e322832cd265839ab75c7adb2b2dfbe2b3fe69. 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/MYVM12000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee18bc04861772f151077de816a28a6f1745408455bc75e75dc743ccf4fff43. 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/MYVM12400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8958630e21796d54061630ab3b710b7ac1c9b652133acc9dffb140125f0859ad. 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/MYVM12400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f56c729ef5af773bd77d34c9bb1a39b375417324ac7aee7281a9216525a5b7b. 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/MYVM12300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a088813704b17528581d00ce8877bc64d3b87e48db1911753a53e3b5cb6630c. 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/MYVM12400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a5398e11d16b51f1334a42e33027c8988dc5eece6d5824240aa77f820947c1. 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/MYVM11900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa913895da5a64642193c4fd742fe0d927ed293da7460dc7ffaa2fb120a5868. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/MYVM12400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4827ca615e82fb9d795dbc71b6ea7169eb4591fd25a7a5dd8898ba644c50218. 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/MYVM12200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52169e96c693833b2d30097e8904d56f8cb260e03ec3adcf703ac10844bd43d. 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/MYVM12400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f56c729ef5af773bd77d34c9bb1a39b375417324ac7aee7281a9216525a5b7b. 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/MYVM12300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4827ca615e82fb9d795dbc71b6ea7169eb4591fd25a7a5dd8898ba644c50218. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/MYVM12200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68eab2922c0e16ecac18b618fc89575e5c7c1bb12a642fc9664cdcd322d03f46. 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/MYVM12100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacee6b7d1ac2916a7162f37d916826822228afbf7c05586bc8f31cad91958e3. 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/MYVM12000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fb7ecffb578f721e4a1916b5e322832cd265839ab75c7adb2b2dfbe2b3fe69. 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/MYVM12000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a5398e11d16b51f1334a42e33027c8988dc5eece6d5824240aa77f820947c1. 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/MYVM11900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e4507e6ee3b161daa67569834e14a6fc16c1ffe4527b24718ae026742667a6. 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/FR2X41660142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cc39ef3e22e2857b760d2ab95293da0a676d0f2a4b7f72768397b4bc090fee. 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/MYID11400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f4f2f793c45d0975f597e90daa68b4cb5ca663e8a98cee5ecbc1ffb65b0f0f. 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/MYID11300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf1ae3d66bb1117c4184d3f3f9f336a257ba656d40dc63df0a87f38ec049661. 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/FRX871570250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe999a7fc2d83c4d46185c80b7ecd3d2a33cca7cac6873867206bf74556ea66d8. 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/MYVM12500051.