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 0xd342f10284d96057d94e46d6d8a2d8159e57c10bda9fc9c241502d79fe8e0a3a. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7a718fc-a889-4352-b3a4-b08b25275485.json and https://artists.proofprofile.net/proofs/artist/b7a718fc-a889-4352-b3a4-b08b25275485.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 0x18505f6755df765652696f906b8827c8dfb5227d4ef907dad8e9d690ea209f73. 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/BRGPR1700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62749763f6170de5b7742d0ba590c01464cd0bc31f8a761ffd272fe531d2d6a. 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/BRGPR1700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1357737a746940388ef5428774810369e866b77fc705859f1788f172fe53a60. 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/QZWV32360187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24247f09ac69fbbb1b06d06043c39fbd935a75fc5fce076c8c95631aba64763d. 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/QZWV32360199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab1fa2e25b86ab9ab24bac9e56f880ed7df25b4d057a7d18c466c50b572c48b. 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/QZWV32360209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe18af270d80b895c5d1e1349938156733f802469d95c6ddeaa10b16f5bc40ec. 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/QZWV32360273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a12324e7dce2a91fceaa1c729992eb8439d6dff32bdf471cfbf33ca303d323. 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/QZWV32360540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b040690fc40133d17831cb9105c1f6f355ca0d1297b6de2cfaeb3abb05a136f. 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/QZWV32360286.
Comigo Está/ Jesus/ Povo Adquirido/ Fiel/ Invisível
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b83edd3adb6e6169afa8f84f4b65e82a10ed344e9b10da5c962c91b3f9c118. 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/QZWV32360470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0b671f67f6a1091fab99f57f36cad1b59dfb10cb9c66fc79a4c5cfe66f0325. 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/QZWV32360335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4572d1e14d2414d399551f6883ccaf0616496d470e62bbbff77fe7dce4a42931. 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/USLZJ2369160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ababe391c872731f2d736a4b294c25b297fe7c4390fce28078a40690cc63896. 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/BX7SN2000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadde37677e939ce13b7579b90bf657217f83c4e2c8b59100d16f43b979555ac8. 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/BXDIC1900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb302d5b5732d9d261a0f505bee36d3d6bc0411f237191e588f70cc88ea920666. 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/USDY41901099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe314577d9e1d36f312f6c5976aebc0a7f6be8a74e9e97ea5982363d5e55e80. 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/BRGPR1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f4a91a9f2f2d7d43f2b89f7a3ff2f4b56534b18e02e351438ba4502191b85b. 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/BRGPR1700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d04bf166e22ec5aa9caf0e6e130160de5b1ae8a3db2db6e32349b5399d5b170. 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/BXDIC1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327dd9953d322a72fa5bd4f0cfcb0ce1ca05c3d4672c9bdf901f805feae68d44. 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/BXDIC1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89ff6ef43e5dee86af8312d7c45f9a186353744db68a039eb55ededf7b92cf3. 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/BXDIC1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585672c2a708cc5a48beb633f646641dca5f25c400e68c36c082126f5c136235. 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/BXDIC1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac5b7fb8e5f022ab65e74c9061996e4ffb795b6817a79e421b4550ca8f60b9b. 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/BXDIC1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f9e524d41fde7fc19c4e56babf7c8b06f27601a597da14bcdad3d856dcb6c5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BXDIC1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47682924acf54c1f3369646d9788318594ae4e1eb2d43acdb417eab2266af433. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US7VG2415468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60613d7ce65a3b1e636240ac72aa8e895d54de4f8038c6928cd19779019d30c4. 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/US7VG2415469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f1904c700e6fe6b4fdf46a342fb34622cfb2abcce75f15a7e7ec99501cb8a5. 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/US7VG2415470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ee4341570dcb1473f663b39ca16edd538e473ff070b8bb1a36c0b868afdd37. 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/US7VG2415471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1108f30f090cb729b10f2ce6af20beffee504226fde0c5d15f354ce7cf3cb2ba. 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/US7VG2415473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5bbe6817897cd4114082d36636b1401cdecc48bee31f6afec22388335195ee. 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/US7VG2415475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6862835da211c242a76acc306fec6ccbaac9cb36783026e5c313419852926e45. 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/US7VG2415478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05856f456725fa7a95cdd8dfd7b46cc9ac0656abdb52df585b7fc867ee02da9. 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/BXDIC2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4572d1e14d2414d399551f6883ccaf0616496d470e62bbbff77fe7dce4a42931. 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/USLZJ2369160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24247f09ac69fbbb1b06d06043c39fbd935a75fc5fce076c8c95631aba64763d. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZWV32360199.