Estudiantina De La Universidad De Guanajuato
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 0xdb9d21d0422c74219b769a99c76a15eb455eea3f8c636ec53f77db1dff0b97c0. 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/627156f2-ada3-413c-b6ea-1b351654f493.json and https://artists.proofprofile.net/proofs/artist/627156f2-ada3-413c-b6ea-1b351654f493.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 0x6ddfeaa1ad2560c624d201addfb13b68f2549e5ffcb9e90ec2c09a69a6238bf9. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/MXF366309472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e17f275eef9b587d862cc13cf40f73434828580dc9e8122adc8fc88239d1ad6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/MXF366410273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac30dd11ce70bb24b4e22cfeee3d789fe307b1d9e5c24044e085e30229c5366. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:40:45Z), 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/MXF366510984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943e3eb4e8e5932fe37293029d82f908a6e54fbacb1ab18071bf59039461ac62. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:04:57Z), 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/MXF366309478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6419af302778cba8c5b5c1047656a9a18661640edab60292e54f99cfece5aa8f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/MXF366309479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d22b61ffd586747a38b6b12244abfd6c309a4a54aadd801619ccfe3ce841ca. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MXF366309477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fa6a67a1d7c1893dc8b3c29c73b2ac75814c00ee990720297eff654c2d3fd8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXF366309476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae8f6016a5a82c028c5f7981a284f9f3937568adc5d4d96441ad57a37d996ef. 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/MXF366410275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd69f6429e5f8421e59cade8049d0d3fd056db974fdafa27c7d59256425672a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/MXF366410282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c795054fddab7ce64bcc21f8a6e1b58a904160b444c004a3901b8b3f304e4a5. 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/MXF366410278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa0a08ef0d799aa60a2f9ac06dfac09a9fc6923ce4d1efc0327232284215d81. 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/MXF366410277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc5a61783b577a2a13b7f2805952685b9fb6ee99ed5c6a0f20b53924654b02d. 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/MXF368126454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade8c7172c06762b5e4db5cfa35a6e3c61472200dbb0246e1320e07c3ef88995. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:20:32Z), 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/MXF368126451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb861e325ab88e66b4754ce446cd42a51c1be24835ef4a177481c1853fa56b4. 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/MXF367117679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9aeef37250dfeb45f2eb4136901b6a2b2b77c208a34a351908e49130d3e326. 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/MXF368126456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9feb1e8f3948a6b632bcf3f5133d5a89952227eef409f8c19521bbbb30ca23c. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:48:22Z), 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/MXF367420711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509e5b757522f019043c6f8c35fc3834802d18dd5f2fb68cb8857256c43aa5e4. 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/MXF367420709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3faae1e58258de56dbc82f7203db0ba866e3d59fe42dd1fbaa440827f020a53. 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/MXF367117673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10627c1bac766e14e17dcebb869db1b9412daad793f25a7b7010838990ae6939. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/MXF367117677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dd40d992e8756400e516c684e2b04f28098281088455bcf38b060822792dde. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/MXF366612142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc40c6279dd604b480da7bd37655c4a447a164ac72170286692c79fe80d9dca9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/MXF366510983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08838f21aa7138d8cefdc39acd4bf095aeb35829778ca495f50e0f524c375496. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXF366612146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588b09031e56286423de18043279ae3ba1eaea9a2e1960a75b0751982e57e917. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:59:29Z), 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/MXF366612145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27b5dc1dac0a649705b9f079b7a3afb21b9be27c4213b3d2f184ecfcfcd0d7a. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:45:33Z), 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/MXF367723596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a38c5547bb67cc493c31f2f933a1f990e1692e601fa3d6a774f333efb4b83cc. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:41:17Z), 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/MXF366713349.