thumb|upright=1.5|Marina on Portugal Avenue, Rio de Janeiro, Brazil thumb|upright=1.5|Marina in Fort Lauderdale, Florida A marina (from Spanish , Portuguese and Italian : "related to the sea") is a d
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 0x93916508b3396606d2e13d5bcf0cb952208a86281a2cde83f6494dca767023db. 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/a44778ce-6d55-4ce3-a784-35c811f714ba.json and https://artists.proofprofile.net/proofs/artist/a44778ce-6d55-4ce3-a784-35c811f714ba.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 0x315afa104142fabdc9c49ed5b3ea894a06a4f0e39776ee7d7aa8873c602a0a49. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ES38A1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6378e0b256a1d0813a09615485f3ed0777991fd3b8d4df2d195ea8b411e4f984. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES38A1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404a0812981e488dea886ba57c44ed4a04339659f10565979f7e543d719593c9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ES38A1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543961bbc20d91456409f3af48ffc3319c54d7d95c1854b8957ef7a285011118. 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/ES38A1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b63623322cc859271a4c2019cae2f9a5f4c7615a4efd443208608e08394736e. 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/ES5151901345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bcc024b145a0f831c20344f7e8434939e3048e6a29722826093acd912adffc. 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/ES5152000372.
No debería quererte (feat. Demarco Flamenco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9304e79b2fc270e13d1ed5cb2e975e05a0ca5bb47cca6e85390506227a8c558. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/ES5152100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d7812dd192f659073c759660d740f635454b02a36ca35e571d7c4f7dd9c6e2. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ES5152000237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b9fddcfaf30102fc96518495a255ad74502e19c7897361d5b2a3506d64e314. 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/ES5152000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9304e79b2fc270e13d1ed5cb2e975e05a0ca5bb47cca6e85390506227a8c558. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ES5152100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15fc8082f4a4d4a59d35828e4a0a4b42e9a52ec5f0ef64d886f7361cdf02567. 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/ES5152000241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b6a54c39ce6eed2b1eb48706d3362fc33b893c74aed2e1e528018280bab3c1. 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/ES5152000245.
５分で眠れるデルタ波と自然のホワイトノイズで自律神経を整えるリラクゼーションアンビエント 眠れない夜に聴く効果的な睡眠導入に最適な瞑想 音楽眠りを深めるためのベータ波によるバイノーラルで睡眠の質を上げる 脳がとろけるASMRで副交感神経の活性化
Delta Wave Sleep & Natural White Noise - Deep Sleep ASMR, Relaxing Meditation Binaural Music, Brain Stimulation, Insomnia Treatment, and Falling Asleep
５分で寝落ちするα波 大自然のホワイトノイズで心も身体も全て洗い流す癒しリラクゼーション 睡眠の質向上自律神経を整える睡眠用バイノーラル 大人の寝落ちのための海の音
自然音ホワイトノイズの睡眠導入安眠リラクゼーション瞑想
Ocean Sounds for Sleep and Relaxation & White Noise For Babies
5分で寝落ちする超熟睡ソルフェジオで脳がとろけるアンビエント
脳がとろける癒しのバイノーラル ～1分で眠れるマインドフルネス瞑想～
自分自身が好きになれるようになる
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a1929d6d24639ee5974a915e8076590cc56cede42b8942320704453de49baa. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/JPB952503827.
５分で眠れるデルタ波と海のホワイトノイズで最高の瞑想バイノーラル
大自然のホワイトノイズで安眠α波で疲労回復とストレス解消
Siempre Quedará - Dedicado a Paco de Lucía
Siempre Quedará (Dedicado a Paco de Lucía)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2966a9c40fd879fb2b0f9c3d2e119c07c68243e89988b8adcf557534ee6a53. 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/USHM91457630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a7eae01f772dd192f6b46985d51fa793e6f527610fac07e4a7957707d6c0a8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES5152000538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9280a2b1945371045efd9fc9f106deda75546c0e28a3a6ce9268eef5a162a197. 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/ES64E2339652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fec2742a6622b13fae5a425679eed3234699c70e641f552ff861e3ada7d0ddb. 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/QZXLZ2402065.