Roman most often refers to: Rome, the capital city of Italy Ancient Rome, the phase of Roman civilization from the 8th century BC to the 5th century AD Roman people, citizens of Ancient Rome Roman (g
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 0x286d88df84f60d0a75c5ea1e8085348f251a56176d1c85973e3944a818864cf9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fddee23-1fa5-44dd-8eb3-cc2f9821c304.json and https://artists.proofprofile.net/proofs/artist/5fddee23-1fa5-44dd-8eb3-cc2f9821c304.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 0x41e048fed9cd6e107cbd1d62110e43821540e23e05579223ec3590e0b60f8357. 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/DEP890700151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b2e7aaba85a5c901b980b5b07f8f04c52ba0ea33ba70afe03e91d10dfb1b04. 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/DEZ650701796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aca90e2e0724e4c9d10958eb956462190958e673c38cdeb42678d0a950482c2. 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/DEZ650701795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d41928ee1306838512ee0a1763c69fa38309885661833ea1689667c303fd55. 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/DEP890700154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afc4d2dc62fbb15538fe47099144fafb8c1a8da51e0e300885231fa2faa80b3. 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/DEP890700155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d01fb51efccb8e3bd4474427e90c5a0b8c63c8b9b18c7fb92d2c011160b9b3. 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/DEP890700156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e67f3583a0e9894a6911fd3410de9c35b9da3fcefa8f72c741057bae8f6da59. 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/DEP890700158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4407fb0624ae0d22cd0cc496926191a7ae4c8d423314779ef3afae5a9bf6f511. 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/DEP890700159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc116edd6e922a0a7d71de1bfa3ce6ec36e82cd405a2fc8b511a68af678144057. 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/DEP890700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30dc781117bc048e0533bb6e1c30d88da6277392ca3670e13022c312d16865d. 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/DEP890700163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539fdc28580d70faf21ba812c1473c7a8cc085d58c37f001eb6e0cd28279a99d. 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/DEZ650701797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3313d6f46b43ee86347cdcfa59c1719401c676c812cad8b406c39003393408f. 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/DEP890700166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f343c1310b60b79388683306891053896a219afcb6e6af30930268594e5354. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEP890700152.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93091ae92562117f6eb5a6f5544d1e4a8cbd42429840aaa83ea5ce7611af47a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEP890700153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaa5599d142b7eeee2ae420550e15ba973f2ee734249db402774e7bc7a8c016. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEP890700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74f3f4cb947217618f1c20e89ca9989d6875c7b62c8ccee1fb747a5431743d8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEP890700164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef035bba2b51d19bb5dc0fe834a6a4c158638367e1756ed60cc6cbf9c2d8ac51. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEP890700165.