In Egyptian mythology, the name Mehen (), meaning 'coiled one', referred to a mythological snake-god and to a board game.Discussion of the game by University College London Snake god The earliest know
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 0x2224033ff04e925d6324ded594999715903b8a98ecf7fb0b8dfba85bffaa6545. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed31b6da-3275-4a76-8836-7bd0874701c8.json and https://artists.proofprofile.net/proofs/artist/ed31b6da-3275-4a76-8836-7bd0874701c8.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 0x14bdfec18d9eca0f62079d12edfc6bff96e69ee8ca0e5d6eb4d7847e23fb3164. 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/US83Z2478210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ed8ebdf05b05a3c174550b490560ddfc8648adbbe0db7fdd8aa0e03bd204fd. 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/GBKQU2445684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7e3a34c29eef15f19e7d3ae21ad7256798607ffe8bf42d40f4a44f82aace6e. 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/GBKQU2445685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839096cbb1ca166520ccca3cc8e0e1a66968bfb1c8c431f2f28185675216a0fa. 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/GBKQU2445687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1d83b3acd5cedb51471ed37f1fe48dc7be602e726989fb41e8c602de80d405. 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/GBKQU2445688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17dca81f99d3fa24696c64cda9b51f66617acfd13726f7382b2d79ded1e2f08b. 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/GBKQU2445689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fd80b7f06c292dcbe303d14c36e9c3f818cb21b49e4c7da4a9d8cd7e0b31ff. 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/GBKQU2445691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f2d5180e7c887003d12a4b844fe2c75c8b30c33e3e44d150ce3c6074db30c7. 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/GBKQU2445693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19b9b9b2f2415449675f18bbfc20c84c3a41d906ef9e481c9174a060e4a02d0. 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/GBKQU2445694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb07a3e94b79d667d272237d978667afcc7a44a7afc7ffc799f39d25a622af51. 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/GBKQU2445696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e66d20627da9dd1801270b115a20637792120897ca0ab340c50cab0f564e425. 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/GBKQU2445697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4159c5f22f2b02d1dc290b6197e316b083d04426c349544a0eae9a186fecbb58. 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/GBKQU2445698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa35b7b8a9efbbc1d6d54727d9f43eead55ee735a9a44a6c70369b8b4afbf7bd. 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/CH6542010785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb382986d3e0299e106eb208e1b91177ff30138210e9f52fe51c82559de160921. 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/CH6542010783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca98ba6d819231c93e43c321628de5f624dcaf79c4508b90bb279b2cd15ec96. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:14Z), 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/CH6542010782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920e5761b12efa5b76a13e039eb12587f6e529bb78f8d29382aa7a514646dddf. 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/US83Z2337103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fda242118c1e533ee6866ed1314519ea3d47d114ee36f7c01be67f106509d2. 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/GBKQU2339383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc710a59e6afb7c2736b143a96dfac227b3c9f31d70d9be5efd560ba8916d5ee. 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/CHC652400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29caa99f4f3ae2314ef62914fcb50dec65bed3d3b927a7a00e795e0d08bba725. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:26:10Z), 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/CHC652400223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cadd7e2475fefcf14aff0d3d9459efad4db98577d007249d67b4c5a4401ec2f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CHC652400217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81c0d042e73f5bc304451abb49edd20ea2d5b3aec43c1a90db0176c1a919e75. 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/CHC652400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6904da8d6b0194b61faeff8d4c2ba3af4560fad439d4c280f668762bcb646d. 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/BX0BA2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846e979010566bf28aecaf5f49702eba76d6ce70598e73603b7d1fdea5b884dc. 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/BX0BA2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc689c80ba5bee0d48340c4588c78f2a69eb143ba15c76f79f02509530769cb45. 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/BRRGE2200318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bacb5013cb0e801a8c3cc30bc0fd6acd225a2b602f6bb86f4fcad58f741fe36. 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/QMFME2098770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29fc260750cf712090573a6695f27b590cdbff174808e04b2f97972c1285444. 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/DEH742159503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b21f711351f5a551fa0c6666f16cafd57685a266f9673760f0077117360551. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BCE5L2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b6f8c5a1e3a8862116ec71f0704348c0673449455fd0539e053e006eff6162. 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/ESA122463029.