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 0xd609c5c9e140a5e79415b86783b4507e23b67332e1e3364c83d592cb11f1466e. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa016194-ce3a-4912-b184-311ca5a1bad9.json and https://artists.proofprofile.net/proofs/artist/fa016194-ce3a-4912-b184-311ca5a1bad9.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 0xf73b2a526a71aab9200c9cfec8f756096944942be0c04f815ee08849d66b8d5a. 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/UST8K1705372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f6a48a08771aa72ea4485e5cb81b14c2c77e76ddd24f05afd19b18517acf18. 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/CH7812356384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde41b8f3a1d01f9851b40e720f7870b984d8fbc9a74903df9a20b794da546d41. 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/CH7812041411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6410688e6c9e2bfa479df5223784343c8bbed25b91f39c13e587192fa5375de. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH7811503987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d662d6d3c431959377e6c1f474c54896b0bf2fbb956a97889200988d378f6b. 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/CH7812103341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8f5fe7ab1dfdc00df30ae54c110704352b7a2d53603c898c61f6c62798f7f6. 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/CH7812214805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf88295227057a3e411f623cdf944be0c844cc86426d8d684e6223754c31152c. 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/CH7812228823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc5ce671e74a5106330f5927afa72ec4b66429a8c2ce6ced2b544ac1d027800. 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/CH7812229645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac735bba1cad1614863376457b1cc7f8e792e73cb86ce58f0f719753d79d7cd. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:40:18Z), 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/CH7812238792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420ce6dcc16db2d82022b48d823f4b1cb598c6bd08d67f3558d0e9eb8a0d6519. 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/CH7811819936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c11397a3fd8c4ccc8ed39e86baa570d354daa1d041970640bf2e2f8fcd7f8fd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH7811819937.
In Züri gahts ab (feat. Ruff, Limmitt & Jordan Parat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fa41c2a08d269d5f52bb6d11b0153a182ccbfa935d55f749ebba50dd3b78cb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH7811819938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700d4d175a61bdf37bb5394d527967de4edca982d88fb2ab2a3969399a506ae8. 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/CH7811819939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bed0a420afeb1d589b0cc84860ca4c4a58b082d1eb4f0db1e3ec93bd8615e9f. 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/CH7811819940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb204e8dae483ed03cec7749fb73b4d4566879cebc5226101c23b3f075851c4ab. 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/CH7811922391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92cff91012740b5fc8b265f2708c29154efeb8782277fae4fe8ab0b2afe85c0. 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/CH7812198236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf976f9a59baeb37cb00919a1d5de75ca0f5816bf2d54754c620c7eaa64c2802. 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/CH7812198237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a002c1f80a4c526eed188633d59cfc35ae8fffab91353539b561ecce13c9cb. 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/CH7812053402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2f0896c90a1adec29e68287cbe38e40d981ae201da5e9dfb7a482596ad76f3. 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/CH7812198243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10cbff01b499bf22b372a7d14236822e7be95ac85a2b79117b363880a91001c. 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/CH7812198245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a5ec52a8ae38909d891577622ddbc1af0f4ce4a39c419835673177355796a2. 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/QZDA71941237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb67e73e50dc7f986d73515ed7b9415242f45157dc2ec2f0755a9c98c4773e4d. 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/QZDA71941250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1b86f0cd8aa67507e9d79b076d298687c8e97a8e79ddb2b2164035d897264c. 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/QZFYX2072716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac735bba1cad1614863376457b1cc7f8e792e73cb86ce58f0f719753d79d7cd. 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/CH7812238792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f43d9f2b1896ec198d7d196628adfe3a2c585b7f5c016549b4a7b0bcb634ee0. 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/CH9441501003.
Techno and Trance Club Hits Top 120 Mega Pack Hits