In ancient Greek religion and mythology, Demeter (; Attic: Dēmḗtēr ; Doric: Dāmā́tēr) is the Olympian goddess of the harvest and agriculture, presiding over crops, grains, food, and the fertility of
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 0x253e0bd55fb359b61c792f464e1f2b1cf870b6cdecfc32b22115b846f2267b72. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/272bb104-ba54-4019-a52f-99a198c3b667.json and https://artists.proofprofile.net/proofs/artist/272bb104-ba54-4019-a52f-99a198c3b667.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 0x18a71daaede434d6223a22655fed01048215bc80b6ea34b930391a5d907e9242. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USL4R1900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fc70caf40479d2dba4a990038aa92d1bd4598f932daac3e0574ff55f400971. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QM42K2008301.
All That She Wants - M.a.o.s. Beats Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916fcc485b2aaebdc51842318f668c3d6b755c4ce97d82504d8c105e2ecfdcb4. 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/US83Z2015834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ca2b993a62cd4718c470f1e7960b6c4ed776b2fa72dc80dc994db9e1b52c93. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:27:42Z), 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/QZ5FN2074668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38109b554fa49150760f321b2cc6860b6a89fa8770fb16085c6cb1efd397357f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USLZJ2012577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf94e51a85bae210f3eb005b06a7c459862320e9c0dc619e3b364005ac4c4d7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:07:20Z), 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/USLZJ2026644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd463b33573dfcdd73f03d29546a763a72ce1c7030f6fadf095954ef431a903e. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:22:31Z), 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/QZMHP2031892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431e908af09b9570865dccae7e74b9901d81261df26c9760618ed5d445f1d4c2. 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/QZMHL2052765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038f23fcbb93e19cda292fa899843fa047fc641c74562d3113a5a96c905a8a10. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB8KE2058176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bef44fe519fd5c66808329216245a7b25786dc1275c419275eae63838502682. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GB8KE2157840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14bbaf88bb8104d58b80bd3b4b33d13f56ed3f5dbeea2365cf00cbc9c8fbcd3. 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/GB8KE2161916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cb176daaf09a0d6c2f5d5ed21a800779621bd979e1d17408a68db814078fb0. 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/GB8KE2163207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eb1c01ae277afc67c5d0c999b899d981f71fda78fb6b65f4b19c3a3a001710. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:26:10Z), 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/GB8KE2200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fa024cef9da4782be2a86af9b41af7bbb7ad81ea9b11faac36b47c2c77eec7. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GB8KE2207469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d8f06ae16d8165dbac1441e6c36a8047336ee04216b48196b11490d80faba7. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GB8KE2212788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5bb863221644ff297403c6b01c87c510d4709ff3424b9fefbae8fc34592220. 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/GB8KE2214426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9855f7e87eb8abb13aa09f1723ddeb01d786423ecafc337a9778619aefafd049. 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/FR2X42334769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9502b7ec0a4d1d17d771bc88add86a261a70274607024aafbeb2cc9e0ccf05e9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:37:36Z), 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/GB8KE2310378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259682d13a0e9ca25ea14b4ad8cacdb574f23ac3a347f355f127e9dee7c50436. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:30:37Z), 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/GB8KE2313043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd16b494884ca906143612b5105e44f9f763643103ecb826edf8def16878a3a2. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/GB8KE2413151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf372522c508cfade4414e24005611a00e849ab149d7afe0177a73dd2019694bb. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/GB8KE2422023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b9a6bb4ac7c0dccfbcc8d610a1527984a5bf593c79bb321a034c5a2ee0a47a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:37:02Z), 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/GB8KE2502372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc594967ceb866479bc0da9420e0b683a4b40c734aab19503814e4912fcd52bb3. 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/GB8KE2502374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b752afe31732a887d53ce087fbf70e89757deae6b49813ab35eae81c6be0ebe. 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/GB8KE2502334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a596d2027bd404709c696ca95379b4dfc4a4602785288116e9f3fa397aca37a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/GB8KE2521729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7047c81c3b410943c988a7bc430803a76114d99b09de029274125e7005abc521. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/GB8KE2526566.