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 0x1bf2d25475dc2827aac2e5958a39919e46faf267deefe3bf7cf33829972c7d16. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75aec86c-e9f5-4a77-a2cf-757b6aad30d8.json and https://artists.proofprofile.net/proofs/artist/75aec86c-e9f5-4a77-a2cf-757b6aad30d8.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 0x190c099f28f93f184dcbaa562ec075939670e9e270a2cc4abd74cfab1b242dad. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CH6541959093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f0fac4769d5b8b2045b7fd8ace9b7a25d9cc061ac8455e5fabf407d64b67aa. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CH0832000120.
Das isch mini erschti EP, merci fürs Lose
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb609bcbeb8ba0d11b0d4393f532115346d631c43a167942aceffa7309cc913e6. 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/CH6542022656.
Ich Liebes Wie Du Mich Verändrisch (Live Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf443a7a302b76039b780004bc643f8f70d8d16a928409b2bd69d1fc159ddc90e. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZHNC2136847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b89cfcf67389bbbd1653151209e3948d195eda0500fd1f2d921c57744c0bc68. 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/QZK6N2150667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e670603f3c865d2b441b687ce18a0fcd38e90a645fa7aaf0dbce5d691d9674e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:57Z), 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/CHUM72200200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fc5ad8d0fd4298abf7076aba3d574c706c058ad9464cdb7b2050b40c831ad3. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:39:35Z), 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/CHUM72200238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f70cbda000f7d4a8e31a16eb777a263ea053b63056c13af5a4826e2fa30b4e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CHUM72200337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fc5ad8d0fd4298abf7076aba3d574c706c058ad9464cdb7b2050b40c831ad3. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CHUM72200238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b87be9ea83944d3ca884590d078b4cb592f5462c8cd4695687c0c5ce8b4205. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CHUM72300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541da2f1634d1e16be59d13395c97feb19955117763b4f4f6bb42258cb8bf8a8. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:02:10Z), 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/CHUM72300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538f8174d05b0278061e280a8a8a05b9b95553eeaae260b5398126b47a111b6b. 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/CHUM72300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d4c45f80e2af0febc55ed5fe2cf3b550c0ebb22526eae76aa5d828a5cb09f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CHUM72400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196546c5555397b3105261128f5cbfd8de38f3218730e99b5d09b1ac37f18bd7. 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/CHUM72400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20ffe6836828de037e8756aca4e7f377e49127a4f3d9980464ffb458e98e6e6. 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/CHUM72400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d4c45f80e2af0febc55ed5fe2cf3b550c0ebb22526eae76aa5d828a5cb09f. 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/CHUM72400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1de5c08ad72fa0784e73ce70c0711de840a8f4bc5a6bd891331431195c3538. 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/CHUM72400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab229d45006062975790098736d5210c430dfc411b96581fde5bec0660bd6d48. 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/CHUM72400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d4c45f80e2af0febc55ed5fe2cf3b550c0ebb22526eae76aa5d828a5cb09f. 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/CHUM72400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196546c5555397b3105261128f5cbfd8de38f3218730e99b5d09b1ac37f18bd7. 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/CHUM72400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20ffe6836828de037e8756aca4e7f377e49127a4f3d9980464ffb458e98e6e6. 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/CHUM72400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfba203ecf834b49bf32337376d3e6f40f7c833a19c3aa709f854d19adc8c74. 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/CHUM72400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f11c1fc897fd65d013b7e964c346d929aa19bc6ecfefa66aacb6072eeca442d. 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/CHUM72400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20ffe6836828de037e8756aca4e7f377e49127a4f3d9980464ffb458e98e6e6. 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/CHUM72400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d4c45f80e2af0febc55ed5fe2cf3b550c0ebb22526eae76aa5d828a5cb09f. 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/CHUM72400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1de5c08ad72fa0784e73ce70c0711de840a8f4bc5a6bd891331431195c3538. 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/CHUM72400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfe830e74a8622c78e2d052dc95bf6337615b292df76de462ec7b63d3cdeec1. 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/CHUM72400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8112385399ab382cd09f4f936f4d01071a1f20abae552f2cf67b0da67faf10a9. 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/CHUM72400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196546c5555397b3105261128f5cbfd8de38f3218730e99b5d09b1ac37f18bd7. 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/CHUM72400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93354264c93b38cf42b36394aec42b7d082885b56643750cc0dcbaaa69c49f1a. 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/CHUM72400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74f1fa200acd8a2d221456662cec6dae4b0dc6d5af751d39f4b34db2367c4be. 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/CHUM72400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aedf3a458da50929fdff1ab6cd1d9201a27ad1ad5b66fc7bd87532ee5dcf85d. 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/CHUM72400143.