Marcação is a municipality in the state of Paraíba in the Northeast Region of Brazil. See also List of municipalities in Paraíba References Category:Municipalities in Paraíba Category:Populated coa
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 0xb27b91e3fb4799ef838661a7bb17879ab8a1836589cf73b9bcb2dfeb3cc813ba. 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/648cf75a-b1e5-41ca-8ec2-f292ee609f80.json and https://artists.proofprofile.net/proofs/artist/648cf75a-b1e5-41ca-8ec2-f292ee609f80.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 0xced444cdb84e375c5eaaf3491a546a821e4afc62fa125553f5cafc85f98ef4ca. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXH512200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc197a5ceded0d80e7541eef39370f431001a780cb6c2b78732c7bca0d8e43c3c. 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/BXH512200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e47d2ca716f107ac512daf6138d964caa36f84ab52f59180f0362f9a0348b5c. 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/BXH512200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee012dea2c46694c24e35f3a031cfc3325c78e4fd1b52ae6198333f7550ef5c. 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/BXH512200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211801b6e43e4388a456f748b4b35ea1d0f4f73aef57b9d30ccd49740ff01be1. 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/BXH512200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637844e0517d85cd0445115b71d7279fa00dec8ec00efda36210c20d598a1f09. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:53:42Z), 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/BXH512200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d7d8c16ebfccf7a2a77f9770aee2179e0920342676ab3993c6d916b1b13c0f. 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/BXH512200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5e32e03ae821d2a9cdbb62fcc442a9833568ec1b13a107646cd8e8743fb430. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRZQG1900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2407b3557da96fc2016c06c6d8057a1df0d7a92fb402d9cd18973b6414d0f7c9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRZQG1900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b5e545d634ce76a8910313869fd305e8c05bccd0e2a4a9477799fb2c404a79. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRZQG1900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0af88ab6ad9c2f9753d48ea7c6bf85ca1c65ff85dbd93f420226b6c7941784c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRZQG1900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b08ef6dbc459e60bcc004647a8f0e353aabc86e67e0bdb8c69fe582876ab95e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRZQG1900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b41123c8f1eb358211cf29d10d7acec0e12bb489f98941e77802cdf83c04d2. 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/BRZQG1900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f5c1e326adbb8932c049619cda8c888d7a012a7621353fb247b52a1f57438f. 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/BRZQG1900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26bdf980d421bbda1761531fec05e98f9d9efa2ea89a29f2f0f8d44c8e14ab7. 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/BRZQG1900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d08885604f443f2ba98ba1276a268c87163d5968e63ff2ea1b98613d62437b6. 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/BRZQG1900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c1318fbb37734894ae62d89a356156581c6c18eb09e0a02f9b4800f6d62344. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRZQG1900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbaa424e003ca7b846140fbdc8cda95060e65082de69b234bfc024fc63ec8d8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRZQG1900043.
Comitiva de Solteiro ( O Resto é Resto )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bf7f3fd56aec95a7be0716eb4f13d37a61a07f1744a98ccad6edca82a19dd5. 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/BRUSA0700969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4950bf1b2a422e333f92b0a783dec050586d3d6ce637b52fd706f823fc9a2ad6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRUSA0700970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28933965cab14d4a9b0042cfc438ef3465bbbf10e7711a2ddd8ae42bb421d4fa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRUSA0700972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7a3d9c1065d554acb825db1b4f347953fe4dae26464b77935bafb9a7a3aafb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRUSA0700975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe574edfdd270f70bd9c6a47db0d854a5c600399377f6afd751ebf32394877d92. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRUSA0700976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4032e0110d01ab1d0a586573777b67bd0f932102a50d7d0ecd46138c49189a. 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/BRUSA0700977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507f00e0e84479d9f3a7648f93bcbdbd8572504b79cdd4d065e5803b3a93857c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCGJ2413778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea8beede91b94306487962954edd15fd1f676785ec9e892d94aa060cf4c45cd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USCGJ2321145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0d109ab6a38ba41900fbd4d0ef0a69b76a426e8847585b27ea064d6bcb5426. 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/USCGJ2226366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee012dea2c46694c24e35f3a031cfc3325c78e4fd1b52ae6198333f7550ef5c. 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/BXH512200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54112beee15733af82851c5f3804ff017d3a8874651354a1efa4c31643ef02ed. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USL4R2152636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d01299bf1335f57ee351ae19d1dc8db68ab759a784c74f85c7994e3769c67c1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXH512000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320aff3e1b5176d15851fe2aa0e963c813d6d2515d6f501bf9b12691ee332a96. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHZ32041922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22af901272c7090ccedfded915e3956f322f8d0de7ce7dfb3a61a99a688e0c14. 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/QZ5AB2025447.