thumb|right|upright=1.5|True color image of the Trifid Nebula, showing complex gas and plasma structure A nebula (; or nebulas)American Heritage Dictionary of the English Language, Fifth Edition.
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 0x5c6e321e6d6b88e8e5054c7a19baeaa8e848ed182c82cebe7a35a0140c0c684b. 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/c6024ed4-94d2-42e2-8dd1-486b333f58f0.json and https://artists.proofprofile.net/proofs/artist/c6024ed4-94d2-42e2-8dd1-486b333f58f0.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 0x7ded4a9441859afef04a0aa393fed07029da94bf230a30e172114fe6be69b5b8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USSUB0311641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bc5dc5037b9d82b3b10ed4d063a77123842bea8e5c177bc25d7aa54e9e8e61. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:48:52Z), 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/US33R0900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03579b425c8c7a5f0fef7cd3b732162c38807f8846b5d2c6f4d06a73a7cb17cc. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:05:31Z), 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/ITM461800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaea8af89d24b07db7683c59ed4191bc0d686259e06aa18ef29336604e3a40ac. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/ITM461800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3383025460c378a0fab36d29dd560375ef14b74a3f95f4ad3482d538be110051. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ITM461800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10b270f7f492d58c4a2936be963c322983a0b6dc330e9da962e8c879591f547. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITM461800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbad353847b8681754ee3d563927a94621ec8d4e55937ddc77d44f77efdb171. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITM461800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0a3919fbf29e7deeb2832925f5a5ba103467b0bf724f7e4be2e56d61a89430. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:24Z), 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/ITM461800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85302b88ccedf29478b475145d41e1f950bffadf31532a227062c1318c5790db. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:42Z), 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/ITM461800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab6b41dc706f5b4fcdd359bcbe4d9d5d7bc1af9c3b2af20f1adad150b59b5b9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ITM461800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8acd3b3763c607f738cf1a0c5859b1073232234f94981f9697bf70eb23dcb9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ITM461800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b27053bd8773db639475a1df96776a163be03a722d03033edef3aff572f5136. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:39:17Z), 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/ITM461800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed73e3a0407af2c278d4b2b5f4a0c83b06b39cc0bbf4d1a6ba76d830ae2303a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITM461800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a89eb359cfa84c88bdabcf09c40dda7723424b9fd2986e0f25477ac418487f. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:46:44Z), 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/ITM461800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba80c02171e88a2fc95eb4cd8d4859a501ae0a60015674c2799e95a0f017c2f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ITM461800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b626e65a6500761a3fb04478693e57e9a0ff7825a52e0f89e49b6307f012db0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITM461800349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b0f9ec3561cb6260b132f22c864c5a1a21755fc7242b5245246e0d125fff73. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ITM461900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dc329fdc7a1604e1df5b40e438f0b5cbe0b35c602d6e36b02924e6f97fb9b7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ITM461900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878061ffc35c023e4018a7bf4f99a1067e966b11a7a4cd3d4aa2c7853b995317. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:28:24Z), 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/ITM462200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf2164506fad0146cfd29a9fce98b47e2d6e6ca925fef67d5d741dca58b7644. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/ITM462200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf283bed6b00dbdd46f11e0f19f0d935bcf1310f6280a7c42dac17b4f78bd4d7. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:38:34Z), 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/ITM462200197.
In Search Of The Cosmic Tale: Crossing The Galactic Portal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6933f9a10455894e71b290edc76ef6d166d9a966e39cb894829fcccc36b69479. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ITM462400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b656d81e3ab1a8a00f3347cced44245b0010db7f05bd152f4a8e2a85d5bcaa. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:43:45Z), 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/ITM462400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfdb9ab568ff630884e1153f90329d9e47a86b99800d03acaf5bd78b5dff599. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ITM462400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a13c7a3320d96be4b6736f03f561acec4d186bdb35c69aa4b84c1be5862f894. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:44:14Z), 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/ITM462400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6233e47a30bc875034f495b8f7444c3d286fe92d06113e2aaffb9db748b3158a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:30:28Z), 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/ITM462400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb19248d0f62a8dd60d51559895510c6b80ce2670c08102b0fb90cc9a38d79f3. 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/UKN6K2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3cb72166f1c3b6d3d95de84b3814c94c324bbb4e09d93c232bf6d3b3fd8702. 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/USA560568486.