Santos Chávez (1934-2001) was a Mapuche printmaker and painter from Chile, known for his engravings and woodcuts. Background Santos Segundo Chávez Alíster was born on February 7, 1934, in a small tow
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 0xe7673f3954ceb1cc9b2b09589b5e18c74f28b46271c341e8da3fd2aa7f7e59e0. 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/ba70baf9-04b5-4af1-b646-480f7815c2bf.json and https://artists.proofprofile.net/proofs/artist/ba70baf9-04b5-4af1-b646-480f7815c2bf.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 0x31ddf29ccf64588b1259534ca5b8e48c1a12ea48c458a986fadeb17ac6dc3323. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/CLCZ21501756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d69a3d4a3a789f664942dfadbe9f5f762ec092d001f1db5b8f80d0e29207fa. 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/CLCZ21501757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af89081fa51d7290ada833f4c9dd4481540132f598411a03182f6cc1bc7a8b2. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/CLCZ21501758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee0a6093c76543055fa99bf916b0a1dd5d309860d93037ef2b05032bb001b9a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ART0G1206768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc09c61184bfa67079d2b03ec289810fdd80d29bb1b86027c2d912aa12be9872. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ART0G1206769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e3aab2db14b9cab4661e1ac46a3fa76e897312c636a0add2769b4713006fd6. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/ART0G1206770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483c18c701238ffe6f22bfc632b138368aada1ccacadbd6f10d772a455ea019f. 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/ART0G1206775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d69a3d4a3a789f664942dfadbe9f5f762ec092d001f1db5b8f80d0e29207fa. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/CLCZ21501757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f9123c9546d57ee4e15be6ce3c8905ab28754c704b7eef776bbd3828a1a026. 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/ART0G1206765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee0a6093c76543055fa99bf916b0a1dd5d309860d93037ef2b05032bb001b9a. 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/ART0G1206768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc09c61184bfa67079d2b03ec289810fdd80d29bb1b86027c2d912aa12be9872. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/ART0G1206769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc095f5d76cf876bede75da5daca9ace49e9c3d8ca01fc1d0802ed49fbad52340. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ART0G1206771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483c18c701238ffe6f22bfc632b138368aada1ccacadbd6f10d772a455ea019f. 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/ART0G1206775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc984ae08c4a32e2ab5b6234afd56f7336e2a6868f3d496a95275822315c3219f. 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/CLCZ21501581.
Lágrimas de Santos y Reyes: Ha pasado el tiempo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1a45cdbc9d6c1d87e1f8a531c1565b825b5918fedacbea18b059cc76848b09. 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/CLQT21800460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f4f76cf8b91d39a999c36968c812218686d4b015aa00d8ecd5fa5092663917. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CLQT21800462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1a45cdbc9d6c1d87e1f8a531c1565b825b5918fedacbea18b059cc76848b09. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CLQT21800460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f4f76cf8b91d39a999c36968c812218686d4b015aa00d8ecd5fa5092663917. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CLQT21800462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4221cb2eff2cdbb9410994eb29780053486bbbb4f54364cae7f282827e614250. 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/ART0G1805920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f25122f2621f95cd085438b83762ac06081431fecd9842f247b6b8c84051ca3. 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/ART0G2001123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc31dcf3c631ee3bca5b11b63c22d72fd387b1f645f4b3b7f1a94a12cfb10ae7. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/ART0G2001118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fcb19ebd83e2c271f017c80281b835bdb06250e1564fc683a1aa31c4cff665. 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/QM2PV1779367.