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 0x4b2aa6e9ddf971d7434a58f8db13ac6dfe8c5a87d5fe2a99c28ed2b200c51e04. 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/14238bcd-f5ea-4948-be59-a8f9ed4effc3.json and https://artists.proofprofile.net/proofs/artist/14238bcd-f5ea-4948-be59-a8f9ed4effc3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1.- La Constitución Española - Preámbulo y Artículos 1 - 6
2.- La Constitución Española - Artículos 7-10
3.- La Constitución Española - Artículos 11-15
4.- La Constitución Española - Artículos 16-19
5.- La Constitución Española - Artículos 20-23
6.- La Constitución Española - Artículos 24-26
7.- La Constitución Española - Artículo 27
8.- La Constitución Española - Artículo 28-31
9.- La Constitución Española - Artículos 32-38
11.- La Constitución Española - Artículos 44-49
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 0x0592f8c8743c23e7b5e129d915fcdc82ce47eeed4150c41d62682a8de46ea205. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZWFW2461658.
10.- La Constitución Española - Artículos 39-43
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55ce119acaba7c6ca546ecc7544d51fe5454841628cda4972e89d7894998eb5. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZWFW2458932.
12.- La Constitución Española - Artículos 50-52
13.- La Constitución Española - Artículos 53-54
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a365c0ede05934b2352ad88d7703bee5b94a956d8b2e63d2737d4071bc03c3f. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZWFW2485920.
14.- La Constitución Española - Artículo 55
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b4c51d3c4d0df7d5e77a8c154363797665b148d0bec0bb3add54b5b658492e. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZWFW2489004.
15.- La Constitución Española - Artículos 56 - 58
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4ad92e39d0c870584cda27db3f9be8f150aed9095077148fd3c93ed39f02d1. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ772453553.
16.- La Constitución Española - Artículos 59-61
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a28a16225e351f2857789d434cc2dabd9c08c681889fd0245d170714ab62be7. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZZ7S2442519.
17.- La Constitución Española - Artículos 62-65
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a2b3e3d39c448b2b371f1d4425712d1c790f5cf1a7c65fe433f06ac4010d20. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTAT2593994.
19.- La Constitución Española - Artículo 68
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0961d34b612b9fe15b68a0a1583891fd23f53081cfe92d67a192094f1202768e. 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/QZTAU2541072.
20.- La Constitución Española - Artículos 69 - 70
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dd4f9417b24852071124ca70e97169ccad729652efd1cff590d8f1678a849d. 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/QZTAU2551184.
18.- La Constitución Española - Artículos 66 - 67
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35f625bba183daf9f1d1e7f787c8e5aca42c8b1500055f42abe6027fe9f5450. 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/QZTAU2536624.
21.- La Constitución Española - Artículos 71 -73
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8cc9ba88b7e988bacc6a91f5cb47a819dbffa9dbd7c718d1a85f1e9226b0e5. 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/QZTAU2581956.
22.- La Constitución Española - Artículos 74 - 76
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233be989e90519cf5deb830df7bbe78a9b17b096beba6c47ae104b0df2ba8441. 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/QZTAW2543071.
23.- La Constitución Española - Artículos 77 - 80
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b5df39b8bbef6ec92fcb98df3dfeb038a814064340d0c589232b550f31962e. 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/QZTAW2570618.
24.- La Constitución Española - Artículos 81 - 82
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2efa78e30c292bba172d9ba02a8acde0001214e9ac77da0f4a51332df07ec79. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:41:23Z), 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/QZTAW2571616.
25.- La Constitución Española - Artículos 84 - 87
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b5a21b9767646805a8e80dec6ee03f027f86865d3faa1d1a782f56d5b019df. 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/QZTAW2571618.
26.- La Constitución Española - Artículos 88 - 92
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c21da064bdd9610639bab577e71963d056a972317c15c338198242739076cf3. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:43:05Z), 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/QZTAW2571619.
27.- La Cosntitución Española - Artículos 93 - 96
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc7f52cb0d1de866d88b9f009d123b47632b85bfa0cb632f29dba39758ee1d8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:55:00Z), 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/QZTAY2595872.
28.- La Constitución Española - Artículos 97 - 98
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a16c0bd373ea29966ea77204148a4cdd82b08758a6f8f15aa90d1f53802e1a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTAZ2571959.
29.- La Constitución Española - Artículo 99
30.- La Constitución Española - Artículos 100 -103
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1539471237c518024d8806f94970e2c8f83693065e41bb3fc3fcfdfdb3026244. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:02:34Z), 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/QZTB22517213.
31.- La Constitución Española - Artículos 104 - 107
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b9588a28f3143d5d5e9e1b16a1c268c53a8a8d1a5c99cc7bad4c2b8c422bf9. 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/QZTB22562710.
32.- La Constitución Española - Artículos 108 - 112
33.- La Constitución Española - Artículos 113 - 115
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb411bb5baa35f29e7b4fd53a9ef80923fe2aea40d59b282f8d23553228a945. 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/QZTB22517237.
34.- La Constitución Española - Artículo 116
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ad05ef36441396bd8833316b06b14d595e8f33f45c378d53bb1d262252297d. 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/QZTB22565003.
36.- La Constitución Española - Artículos 119 - 122
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d1cb7091f995373f16bb81e8177a76ed32219a13026768c51247daa9f54741. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZTB22565015.
37.- La Constitución Española - Artículos 123 - 127
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3113a369c59f181cb024b791ddb7494ca0b03df73c77e526489a4d861cb5941. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZTB22565018.