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 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 0x4ce52c7ea5dd3ac2ea30cfa399a75452096f45c0e1a90379a02ca4235ebccba9. 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/62f703b8-e636-458a-a2e9-a9dcb202854c.json and https://artists.proofprofile.net/proofs/artist/62f703b8-e636-458a-a2e9-a9dcb202854c.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 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 0xdf53278fbe90d0e90f0bc51194e201342f1dfdbcfba5cf117e51d2d686f214d8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEA621300733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbcbd6232784bcaa4e1f8bb57d5cefbfdee80cfb895389d5bec26c70eb7d95a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DELJ81899439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e508c0f3884be58134a33bd382ba8263c0e9494c0ca31ba4bfd79f0a89173b0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DELJ81801199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5580b5ac2381f5c738a63eba573803de26a8f8656ce22a6fa2917bd1154fe430. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DELJ81801200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d3d627acfeb5efcad9fbae0cde44d14678c8bb3ec1bdb807a118b6be18f7bf. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/DELJ81801201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c04a1338d46fea897037f6e95f1128da14e6cf04662598e0c78606e6b0cf8e9. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DELJ81819952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77f129c640e04a6cea798308b24e743c479f6598da40ea1a678d56aef939863. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CH7811930723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e32a8fb2623181b11035e490c1ff9c0e57671d78c226db942e7cf05fc2b54f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH7811929724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d65ea6817b664a9c0a711c4cd441a24c80f792df14ae609bf5b501804bc9f4. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/CH7811931381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c36157dc775346a86ed73d586b5d0b830993dc4cabf96056b4bbbdbdf2fea9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH7811931382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48896481c1962cb19a460362765224602def655c94a32a29315d6356ec3ecc68. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/CH7811931383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4b33bf72b774f8eb8d8cdea645f67b11259071572b3b3ef175a219598091a8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CH7811931384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7daaedcc1f0c50ea5d88527d1b9651ad3eb5b57108752afec112a60f9fd2a7. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/CH7812049973.
Solange mein Herz schlägt (Live Version)
Solange mein Herz schlägt (Loft Arts Frames)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eab14ea8374b470e2c41e36e4b441ef438c0bad6e64079bcbc38dbd39e2fa5c. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/CH7812062523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec44e52bf483d9725ff781c4d7a8cc78369a906c8334f324cc29380642eaf1c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAFJ2186276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50204ff7300facd71e92572717f545206fbaa6bc71289446997619031af5e95. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CH7812194108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d97165245ea66c0c74e0cd1a9668b3299221513ac34056d5694b8b0410e3e8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH7812198433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39edd8b820e702bfb3911dc59e5a359832ab32750d9186ec96bcf56c56981f9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAFY2132522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b3ab1ed9d44276a1111a1b0b0285be0ed4657c0a338ba5b615063ff4f425d2. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/TCAGD2295917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814f3a2af8171708e3e78f4ea0c1edb7bb33459c4168f135269455018af8821c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAGH2221365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaabbd71a57d1e2b8255c47cf9e2b9426c90a19bd934f388efaf55e6ac8a9fd5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAGI2243852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd227dd0b261cec282edfd4966d98dd2497fcf70e70ef0b7c447a3dce3e8dab9a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAGM2265372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d103b5fd7d2597cc16f46dcbd24a2174b0dad15c26b845fa667bb2addbde9a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAGK2221359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdada3ef2158f36cc131bbc3ab7e2107e73580381514db3aac4b26487a0260ac9. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/DEUM72309841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b31c55e012a12dd30a806122e75606270f253a6aca00a21032e1d492ddc9025. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DEUM72312192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47d55a4c2ed5f72551b3ce3abb3f05558d0480b63c01b9806ba0122020e76ac. 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/DEVY82400032.