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 0xa1abe7c02b8c31731fde9f04d8161d200540c99fedc985116f84e409ebd0fedb. 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/eafb58fb-18e4-4ee9-9d85-35477452d744.json and https://artists.proofprofile.net/proofs/artist/eafb58fb-18e4-4ee9-9d85-35477452d744.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 0xcf2ea532e98702947b5c6e5de0686de7a787cf8a82427bad9fb9e46f10a89a5b. 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/ZZOPM2232186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1eebb340015485d092cf28eb8c68551586b39c30a263b86a85fcf87806d2f11. 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/ZZOPM2232669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a46092c71a54cce81693d72f4466cbef53330306084f76f43e4e14aeac40e3. 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/ZZOPM2232678.
Pigeons & Planes presents: See You Next Year
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4482bea31d74011abac72cecc2b6c1791a4ec068ec6bc4d2ae4208391060a4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZZOPM2237106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a46092c71a54cce81693d72f4466cbef53330306084f76f43e4e14aeac40e3. 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/ZZOPM2232678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1eebb340015485d092cf28eb8c68551586b39c30a263b86a85fcf87806d2f11. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZZOPM2232669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256d81c679df06b515a639fb4e5508f251e4fbee851bc37bbcf9bacbeedfac81. 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/ZZOPM2237107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b43316a50b48df3f3925a63879340ae6b0e4830590e7eb4a7a757ea992f8b4. 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/ZZOPM2237108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2ea532e98702947b5c6e5de0686de7a787cf8a82427bad9fb9e46f10a89a5b. 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/ZZOPM2232186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222005e812a8a73f66ed3eeaf54dceabf4f6c97f1efde0712a5bb1b4290232b5. 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/ZZOPM2237109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a860246a9ed8e781a448989323db17d069ad0a756b3aa6c6073205138034e37. 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/ZZOPM2237110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b276e33b143984248cf0d86d8d446dc0e96bd43eb241a4b609f1e90bdb0d63d. 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/ZZOPM2237111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ab7287a43645a70f1aa3136ce61a7d087039cb98ca2fe06801b71d0354533a. 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/ZZOPM2237112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb851a5466f5642739f0f34f4c23261e01de627d8424c0d1cc0fdd7563914c089. 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/ZZOPM2237113.
Pigeons & Planes presents: See You Next Year 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2707ef3c7e9eedb62e97e2e8a40ad51a1fc36369068f7d67dd8ab66098300c. 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/US38Y2406388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481e6a83ef150555c96345b8c26d762d1b05a85c74f1fe736ed4e9b6258058d7. 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/US38Y2400972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e804df1ff0434209da8d27d9fb99febc47ea8d4ae057b6023bcc1e0d01cd19b. 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/US38Y2404291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d52aa60fdb7cf1b4ca518eea5c0a8a2042a601fdeffe443cc751041db41cdc. 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/US38Y2406390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599bbff391bc174ca7f27ed5b5e94984eaac6eef63f48a7c7eb73e114cbd0ada. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US38Y2406394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0a60b8b471ad135cd7039e675a842ddca17b31f1ff30e7114f6b9abec98d48. 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/US38Y2312530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa58f3ef4a1f5f3cf2abd866c85199a680e53e1709c9655acd7c85cafdf1fc4a. 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/US38Y2406398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd864f7a9dbf57e6fab9088842056608c1108a3e6e17a16c8c4999ce5a384850a. 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/US38Y2406399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d327a7f0c1ee5872cecfb29d9ab6fde661fdbfdb2f9752c8646705fda99e4a5. 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/US38Y2406400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926fadcd8d155d1cca12b606b6ef1d527e8806702484ce90dc7c348de15cc82f. 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/US38Y2406401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd56a7e4e732f86404cce2c06e3ab0fd3557b886a4928c42cc8eaea6abfe3d8. 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/US38Y2406403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353362176f58126cb601e5c5942882ec9b273eeffaf59f436e6cd813ab7895cd. 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/US38Y2406404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7b40a0cd1903c8f3fc4b9b40ee5d21aed7a37f2f5232339f336089e4e9b818. 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/US38Y2406407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eac5aa8e74544732e92185d96a918d977134aa0a5a2fa988e6aa99ffb610c55. 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/US38Y2406406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc9d8bd27e4324a3213bbbb94302532004e64e796ded275d5190f202d46a010. 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/US38Y2406408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0a60b8b471ad135cd7039e675a842ddca17b31f1ff30e7114f6b9abec98d48. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2312530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e804df1ff0434209da8d27d9fb99febc47ea8d4ae057b6023bcc1e0d01cd19b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2404291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481e6a83ef150555c96345b8c26d762d1b05a85c74f1fe736ed4e9b6258058d7. 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/US38Y2400972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0a60b8b471ad135cd7039e675a842ddca17b31f1ff30e7114f6b9abec98d48. 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/US38Y2312530.