thumb|upright|Frontispiece of the 1595 Atlas of Mercator An atlas is a collection of maps; it is typically a bundle of maps of Earth or of a continent or region of Earth. Advances in astronomy have a
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 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 0x1877594e134ba84e1ed5925c089f32e51b2a8c10588a83dbea8d13dea7bcd66f. 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/1dad035a-6383-4356-84f4-b8b172532017.json and https://artists.proofprofile.net/proofs/artist/1dad035a-6383-4356-84f4-b8b172532017.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 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 0xf9b4122c823999d630adb476a82ecde3fbb5f0303b0313bebb012116438261ca. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM42K1600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84203e8ea5d12b5e21cde1ac379b2f43d8ae8f362899dfee0eafa07fab3bab11. 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/QM42K1600048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0bee03db9ba56f5591e93481c73b0ba071e44ff278dfcd2b596c3a3cd2be83. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QM42K1600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fadd772b03b795b669461f63055813ea28e21b7fcdcd333043cafa360251b9a. 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/QM42K1600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc064cf2e58f14cebd7e776f217bb796904b0ea40983773c065571195eb31b859. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM42K1764883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cc6005f58181b80cafec9d0f4a746757c0747cfba163cf6134d3fcce2046da. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM42K1716608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fab3b46f37bf84f2e73dda21af1605cae61ab760a0bcf85cdb0750f447910d2. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QM42K1717753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4609bf5e5807fe692d2f84570e2547ca5ad0eb4dc8903bd356401cd7e0e7a89. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM42K1722510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27943bb459aaeb460191a388e87eb46e0f45ffe119abb2d18da1f24515ddc33c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM42K1737528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e5df0b171e577d6a8f34ae9359a81b6368d8821536c7d273be046e0f51fde4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM42K1867755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30fec7f544127b58e6ca7cef2f18fd6cc32e58b5608f0eae0829549a87b5785. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM42K1825278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2115f8818d96cdaeec612a4037700ecefce55c8cdd25f9fa9e85426e788a8ae. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM42K1875393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516f220af7e72f6b72c4dd4c1bb0de2f46c56737da6db415e6cd3706ec6fe5df. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/QM42K1857937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b91ff4a26770d02a22a21c6796abf99d8a6fd1796725ed7017f49c34c6d8c4c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM42K1859358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6c4f18765424881b16da4886f22a695a694ccc8bfb2c772d094a2fe8002e59. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QM42K1948916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b209446e809906680ba3fdd3e19cbe9ea8fd5349b81ec6c37ee2eb13ea6795. 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/QZS672153258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24832b6df6f54d2579e71d622b9a4cbe59e53e51354ce39d7346e5a447bab2d1. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QM42K2202256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a711fd6dd8ecdc75649a05721f8dd73d883a8bc584a16ca8b5bbe4615643a32. 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/QZKDK2229730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409e020d084e6e6b9746c74a7f925ee7ca7aef93e469707eabe7e3d96849da87. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZKDK2297494.
galactic escape room any% world record holder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea1098d4eda50e647589ef0585a0ee533f1e2667cf372192c5e707afe1045a4. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QM42K2297504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b209446e809906680ba3fdd3e19cbe9ea8fd5349b81ec6c37ee2eb13ea6795. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZS672153258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194f2efbe89cb985ecd5862e002a24a1c855cfe63d06876fae0cb13be813715d. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/QZS652233268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ec111be0b4279f56eb24110edeeae30cda5bf884b41a573b7feb17f879262d. 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/QZMHK2207419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1664da0f2a6d822bbe8e2e54b4ef361420866647f109aa64c841e453bf2ba5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZMHN2439589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1b622e2b9ee5e04a191d02210096f140a7138f883613348ece09d66387c08b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM42K2532638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7af4707154552eda812fd75262c3932b46eab3e1737188e11c13c3c0ecac8b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZMHP2564176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcd94b92c02c79598ce3e4080e1183729954d1eb28c4c288a7c90c90a7bc7dc. 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/CAUM81600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514d2f459b2b5547e9f65441f5109ef2c91e21c3ff53a7a83c090cf175a3a297. 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/QZFZ71964782.