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 0x549cf173cc3c7763baa4b8f47f0c4c93461e40d4d5b8e8be1f8b7eb7f06385ee. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dceed6bc-e6ed-47a8-9043-ae2b6c0cbe36.json and https://artists.proofprofile.net/proofs/artist/dceed6bc-e6ed-47a8-9043-ae2b6c0cbe36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Menschen - Lieder, Ein Autoren - Porträt
Abschied vom Liebhartstal - Eine Wiener Zeitreise
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 0xf58da1f620c7f6c01fdf671b93008e0145862abba016ee0c776c5f1f3fb19779. 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/ATP131900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480c6bb1c060c8922e07f1d5e0ef072318b9f4963a6b950684e705673a5f3eea. 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/ATM052101131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4764be14d7e16c257220f211dd9a13588cac6fb51ef8d63e9da914abb8096516. 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/DEAR41617735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cdc98a449c2a4abd23c1b8fda32a5e59baf0e373475f2284fe0c4fddf63c5a. 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/DEAR41610457.
Mama bring a Bier, sonst kriagst die gelbe Kart'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08fffd94b98a3e37880ce6880dc42dfeaed2d2b6a9703c3ced834f174b43acd. 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/DEAR41617741.
Her mit meine Hennen (... Der Gockala is da)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f9affff48a82d1d6ef204e88cd3b8fb2f1695db732b8c982909849e152169f. 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/DEAR41617393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d0bcbb2ca814321557577aec864efc9a930de5ad006988de72ce485cd21dd4. 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/DEAR41617395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cdc98a449c2a4abd23c1b8fda32a5e59baf0e373475f2284fe0c4fddf63c5a. 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/DEAR41610457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb64b0a40f23b2f0f8f92066cd6895ab050c523b7b591615acf3d3491ab53aca. 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/DEAR41611753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3624536a0f0abda9460216f9769db37ce25ff163e34cb6dd3ed391ddb9982ac. 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/ATV110675003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5dc39cb183d8e7b85632eeb0c020b3c106ba9948528342bd5f8f3deefda75e. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/ATV110675005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae768ef95d01046b32584abb141df6a91b71f2e8ede59e817978665d1387fd8. 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/ATUM72300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cfd90cbbfd0fa5bbc18f4003c265cc0824901d85acec24d80b61c54ade991e. 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/ATUM72300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13294a5620c2af54a751a7edbb40ce6de6673337f0644b25b68e5b87bd20b7bc. 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/ATUM72300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365b007c86c8c5412839f51cca1975cdd9e0c3a8c680ffd5ce687634cf72d277. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ATUM72300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e935143691177114e6865377009525871e9656fd8076384df54bb8703c670c. 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/ATUM72300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451de760a1a1b790cf8200fc66612d7f41d54c9cf1238bdf19230c4dfe6ecfac. 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/ATUM72300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffb8b469428ffd5683aaa0399fa7637d3ecb38d83d7f869da1b25f3ef8fcc9a. 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/ATUM72300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe622a069e9259318768ced465b8f301dbe1f298f967d6cd298a924d914ff3210. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:49:40Z), 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/ATUM72300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044d599215dbedf4d0cee4d56385dafa64dd460a5bf6e124eb0adad37ff97862. 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/ATUM72300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321bc7410e00ace7c7ce4a39a9269091f1276bccfe3b932c6cfcb5d6c7b44d76. 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/ATR981204045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe793dbaf8ce816519e853745fe3c360d72bd9e55523026a8c5893e6d93048db. 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/ATR981204858.