Chico Xavier () or Francisco Cândido Xavier, born Francisco de Paula Cândido (, 2 April 1910 – 30 June 2002), was a popular Brazilian philanthropist and spiritist medium. During a period of 60 years,
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 0xa4d75565d01ba8bc69debc8caa4cf7301f86b3faef9115d58c3733f013da4ea2. 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/c9032842-a9ae-48f8-93c9-155ad9e46b0c.json and https://artists.proofprofile.net/proofs/artist/c9032842-a9ae-48f8-93c9-155ad9e46b0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chico Xavier em Sua Casa... nos Momentos de Paz
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 0x2d8e70a72717b71085f4b9c1747ad91c8c19953949c63a619cdea696bdd2a428. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USL4Q2251779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6179204fd284cb239fcecca90197af71c8f034fa1bec2767f67d940fae8b89cb. 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/USL4Q2251781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c867935b2beff0fa12a0a5717dacef762a75207f6f3f8ca7d46e9d36f94ce2. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USL4Q2251784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6840d59a4edcb79e1609a4c219c962234f371e6d359801e53f0f5abfd5c54f56. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:58:35Z), 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/USL4Q2251785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146750dffc954cac197a28d18cc1bd77059a6fd1c71cd38075723e4913388b15. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USL4Q2251787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5d76a59746260c2290031afcc1fc99d224142d43291c0b5986dedb5de31df5. 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/USL4Q2251788.
Chico Xavier em Sua Casa ...na Busca da Felicidade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce52ac7e0f48a7ea77967c4cb19e4908f4d65b1d578a7cd7316cca54845e32c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USL4Q2248704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24f3c6adfd76b51d134dd8d79b842c0529aaa749f0ff2f9baaf9e18c8573509. 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/USL4Q2248706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf028a7b2f41f648767edc0bade3171b26e0775e551be2b018406488caa0b99f. 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/USL4Q2248711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbd9f00a540e4b1d4e62e9d5480fa14437c6431f8392df45f644ec5841e4983. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:40:08Z), 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/USL4Q2248714.
Chico Xavier em Sua Casa... no Ensejo do Exemplo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028e3e43ff60ba8c9ccdc8e92f5d3678a1dc2761dcdae5375620e07c958f59a0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USL4Q2251794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa190cb5669de877e2212066de821aeaef8b8f4f1fed0331954e9ef5c66dc1a. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T11:34:12Z), 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/USL4Q2251795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c9ff2f83d956403e352f774d8f5d1d38a3045b05d728885f231b0405e14a7f. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USL4Q2251797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9052a5a2e1e03c9574029789f5bf97e6bd9e984f031d5a9e9aa37500c08d7660. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:45:08Z), 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/USL4Q2251798.
Chico Xavier em Sua Casa ...na Presença do Natal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dccd7f428ccc77261e50668a0a652bf0951cec1fbb24dea2fd5fd46141ea00e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USL4Q2168179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcdb50831331f4ad79286468309e761adf5ec63a12d39eb0276c72fb1b5369f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USL4Q2168181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c60cee51a67cc03ae0ed5faec542c5061aeb19222910fe11fa31fb29bf9950. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:21:47Z), 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/USL4Q2168183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf46e9f6eaa8e384687f30030d10f6f2402841c7a0e516b76a0591f0b41d303d. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USL4Q2168184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c89c39ba165c3b16d512246122c8d1ba76dc8e9a9c4f8a623813182c15b4a7e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:27:51Z), 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/USL4Q2168186.
Chico Xavier em Sua Casa... Na Rota do Dia a Dia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92829a2be8a539e13a4093725412163a8e65ff81ee122c7652b53d65662e852. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USL4Q2244228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811f972e06eabb79839a3c7af41252b26925f36907a0e2d04f87e01b01fa8d95. 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/USL4Q2244230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd16974f64380ef1ce7bb416598c64c32aaaf290fd82557d1e274545fd9ca72. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/USL4Q2244232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de97e92d15ed35c3afa7c7733911e859d10664f8a16b467e3ba1df443847c73. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USL4Q2244233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196ec020c2a95cd0c21fd88cdb857b6edb90f0be0087e90cd45b25a6430b0656. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USL4Q2244235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6736f7104898f8cd11e56f59610d89570bcf487d088a99065ea543e93edbedac. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USL4Q2244236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e2095deba2c1c1ba6dd6d44905513159b3e3dbfcdcc14df807c80e29aa11a8. 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/BRGLD1600719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e75302d037ff29150815a0dcd7dce9fee5fa2c702464efb8ca7b5464e21b09. 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/BRGLD1600728.